Originally Posted by Guy on a bus
I have some input, you won't actually need Q until later lvls, and it's a huge power drain when you do use it early for a marginal boost in dps. You should pick up Q at lvl 4, maxing E early, taking one point in W at lvl 2.
With E you can harass will still getting CS. Especially if they are stupid enough to stand near minions.
You absolutely should not be maxing E first for 2 reasons;
1. It has horrible scaling with levels; only +30 total damage each level (+6 damage/sec, seeing how it's magic damage, is horrible)
2. It pushes lane even harder, which is already bad enough for Tristana.