Personal picking guide
The tiers are loosely based on competitive, but more influenced on how I play with them and on which role. It's good to help me figure out what to pick when in doubt.
From left to right there are carries, semi carries, mid / gankers, off laners, supports / trilaners / junglers. Most of course can fit multiple roles, and I've tried to keep them in between, but it wasn't possible for everyone.