get a hextech on there for more spell vamp u deal too much damage on ur spells to miss the opportunity

Dorans Blade with 2 ad quintessences is so much better than a longsword. You will still get the discipline, plus the oh-so-important health. The life steal is just a plus.

yeah its way better to level mark first, more harass and farming potential

Well, if you are going physical dmg items/runes etc. I guess it could work leveling E first. But as for this build and most other builds...(considering her AP passive increases DMG) You want to use your magic dmg skills, E is physical.

It nukes harder, faster cooldown, you can combo Q, wait 3-4 seconds, R Melee and Q right after, since the cooldown is when u throw it not when u melee the person.. it does more dmg...especially with sheen. besides Q has energy return....its so spammable and its not situational...
If you can't melee, u can't E, if you can't melee u can still throw ur mark for a last hit on something or just to vamp up some life...its a way more versatile ability.

I can't see a reason you would lvl E first...its so slow and the range is pitiful...no1 is gonna let u farm a lane with it unless they are bad. with Q u can insta kill a caster mob with sheen, and kill a err..warrior mob in lane at > half health.
as for hero fighting.....i dunno how u can not see how powerful mark is E is just something u spam in between mark...its cooldown is bad

why are you maxing mark first?
i wanna know why people think it works better