Pros & Cons
Pros



+ Ranged Champion
+ The only champion where its not rare for you to 2 shot all their carries
+ Most snowbally champion in the game
+ Extremely high damage
+ Very high skill ceilling
+ Global Ultimate with Whirling Death
+ Very rewarding
+ Huge outplay potential





Cons



- Squishy
- Can be shut down extremely easily
- Hard to master & to play
- One of the worst champions to play from behind
- Low waveclear
- No dash/repositioning tools like Lucian's Relentless Pursuit
- Easy to predict

League of Draven is Draven's passive, for every minion you kill or Spinning Axe you catch you get 1 stack, every stack upon kill is worth 2 gold + 25 bonus gold. If you die however you lose 75% of your stacks, this makes Draven a very snowbally champion, if he gets a kill he gets a lot of extra gold, if he dies he loses a lot of gold. This is why even though Draven is a lanebully it can be good to play passive in lane aswell so you can get a high cashout, this is especially true if you're being camped. With this passive Draven is very vunerable to being camped. It can be smart if your confident in your abillity to tell your jungler to camp you cause you can solo carry so hard if you snowball.

Spinning Axe This abillity is what you max first and is integral to Draven's kit. This abillity is where all your damage lies. Spinning Axe makes your next auto attack deal almost double damage and drops an axe that you can stand under to catch. Draven can hold 2 axes at once but you can have many more in the air. When I say juggling Spinning Axes that means that you are constantly throwing and catching Spinning Axes. You need to be able to juggle at atleast 3 Spinning Axes at all times. This is where most of Draven's high skill curve lies. Without Spinning Axes you wont deal any damage and will fall behind quickly. I'd recommend any new Draven players to first go into a practice tool game and just try to juggle as many Spinning Axes as possible. I usually do this for 5 minutes just to warm up before my ranked games. A trick you can do with Draven's Spinning Axe is if your leashing start your Spinning Axe at 1:36 then use Spinning Axe just before it runs out to keep 2 Spinning Axes once you arrive to lane. (Keep in mind you have to take the shortest path to lane for this to work.

Blood Rush is also a pretty big part of Draven's kit. Blood Rush gives you attack speed and movement speed decaying over a very short time. It's like a short burst. The thing that makes this abillity is so crucial is that every time you catch a Spinning Axe it resets. This makes this abillity very spammable and you can get a lot more attack speed and movement speed then you normally would have. You use this abillity to dodge skilshots, chase people, run away, and to get better dps.

Stand Aside this abillity is extremely underrated and is probably one of the abillities that really distinguishes the good Dravens to the GOD Dravens. You can use stand aside for a lot of things, you can use it to cancel dashes, cancel auto attacks, chase people down with the slow, and as a self peel. A lot of low elo Draven players misuse Stand Aside and pretty much waste the abillity, its often smart to hold it to cancel a dash or an auto attack. You also have to remember to knock the enemy closer to your team, as it can knock them either right or left, if you want them closer to you then you Stand Aside them to the side thats closer to you.

Whirling Death is Draven's ultimate, you throw your axes in a line infront of you and once the axes hit someone or if you reactivate it they come back. This deals damage on both the start and the return. The damage is mitigated after every unit hit, so using it through minions significantly reduces it's damage. An important technique to using Draven's Whirling Death is to reactivate it the second before it hits someone because if you dont they have time to dodge the return of the ult.

Teamfighting with Draven is crucial and he plays a bit differently than many other adc's in teamfights, a lot of times it is important to hit the backline as you can usually burst them down in 1-2 hits rather than hitting the frontline. This can be very risky however and i'd not recommend this to newer Draven players as you need to be very confident. Another part is his axes which is why Draven has such a high skill ceiling, as it's very hard to maintain all your Spinning Axes during teamfights. It can also be very important to give up Spinning Axes in teamfights as it can put you in a bad position if you focus too much on every Spinning Axe. There's a balance to it. It's almost never worth to get hit by a skillshot to catch an Spinning Axe. Here is an example of a teamfight with Draven where I first Kite backwards then Flash onto the Varus once I see he's out of position.

I'd say every support is good in their own way, the only difference is how you play the lane, I feel like there's not much need to make a category for every support as you can categorize into three different categories.
Engage supports
Enchanting supports
Mage Supports
The Engage Supports goes as follows:
Alistar
Thresh
Leona
Braum
Tahm Kench
The Enchanting Supports goes as follows:
Janna
Lulu
Soraka
Nami
Karma
Kayle
Some champs are also hybrids like Morgana & Taric are both engage and enchanting
The Mage Supports goes as follows:
Zyra
Annie
Nunu
Bard
Lux

How you should play with Engage Supports:
With engage supports you should try and let your support do the work, you dont have a strong shield to save you if you lose a trade, or a healer to get you back to full health, so you have to make sure you win your trades. You have a lot more kill pressure in a lane with an engage supports but you also have more risk. It's very important to keep the lane warded because if you fall behind with an engage support the game can be very hard to come back.
How you should play with Enchanting Supports:
With Enchanting supports you do a lot more of the work. You have to trade a lot more and you have to be more comfortable poking and engaging. This is because even if a trade doesnt go all that well, a shielding support can make it even and a healing support can get you back up. This is why you need to play more agressive with for example a Soraka and play more of the lane on your own than with a Thresh.
How you should play with Mage Supports:
Mage supports are kind of different from these 2 categories, most of them have decent engage, not that much shielding/healing but a lot of damage. In most of these lanes you can burst the enemy bot lane down if the support lands their cc, however in most extended trades you will lose. This is because mage supports are very squishy and while they have high burst, they usually cant match the tankiness of engage supports or sustain from enchanting supports.