This is not a pro tip, this is a bronze tip. You wanna know why? Because this tip sucks.
Q is maxed over E because of
- Shorter CD on Q. You can use it more for all kinds of purposes, defensive or offensive.
- Higher base for Q for clearing and just instant damage overall.
These are way more important than slightly higher AA damage from E that you can't get much onto enemy most of the time, given the state of the game's mobility and CC, anyway. Not to mention, since most of E's damage comes from scaling from your AD, and the only thing it ever does is damage and literally nothing else, rushing it first right off the bat is an absolute waste of level-up since you do not have anything for it to even use nor can you use it for anything.