Melee Champion
High sustain provided by 3 of the 5 abilities
Cheap character to buy
Can be played in Jungle or Top lane
Very easy character to play in terms of mechanics

Jungling to level 6. However if the enemy is on low hp before your 6 and you have Red try to help your teammate kill them if possible.

Repeatedly gank lanes until you win with your ultimate on such a short cooldown you can gank a lot and keep up with the best ganking junglers. In between ganks use your fed lanes to steal jungle from the enemy jungler.

The route I go is = Wolves, Ancient Golem , Wraiths, Lizards (If lanes are pushed after Lizard then I will go gank a lane), If lane isn't pushed I finish with Big Golem and then recall.

All a matter of preference
Considered a bad character in both roles
Jungle feels safer to reach end games

Top Lane strengths
High sustain
Correct burst Post 6
correct mid ganks
correct brush control in most matchups

Top lane weaknesses
No AoE so therefore no pushing ability
High mana consommation and can't use tear on top of it
No escapes
No real answer to the bursty characters

Strengths in Jungle
Extremely each character in terms of mechanics
Ability to solo drake early game
Infinite Duress (R) (more like infinite lock down)
Hunters Call (W)

Weaknesses in Jungle
One of the slowest if not the slowest cleaner in the game
Extremely vulnerable to invades
Need a very in-depth knowledge of the jungle to be played effectively
Can't run flash
Can't run defensive masteries
Very un-customisable character
Has to run Wits End
Infinite Duress (R) End Game less effective
Very exp / Gold dependent character even though his clear time is terrible
Has to take every single buff early on
Tend to draw the team flame towards you

Lulu is very strong vs Warwick Ganks after 6. Why? Because if Warwick Ulti's a target when Lulu is there all she has to do is use her ulti on the target Warwick is pinning down and Warwick automatically bounces off and loses his ultimate and the target gets away.

So personally in ranked I will never pick Warwick if the enemy has a Lulu.

MS Quints
Clear Speed
Synergy with ghost
Ganking potential
Teamfighting mobility

AS RED
Best clear speed

Armor Yellow
Best to soak up damage early on
Way better then AS yellow

MR/Level Blue
Don't need MR early on
Harder to get MR compared to armor

21/0/9 VS 9/21/0
Main problem of Warwick is his clear time - need to compensate as much as possible
Allows more powerful ganks
Sustain shouldn't be a problem

21/0/9 VS 9/21/0
Movement speed is one of your main stats
Buffs are your biggest force

21/0/9 VS 9/21/0
Trading too much clear time and gank potential for the amount of utility you get