Things that i think are wrong with league.
Theres a limit on the number of hextech chests you can earn, but despite me playing (way to many daily) games i have a shortage of keys not chests.
Mages are forced to buy wota (which is lacking stat wise) to get sustain. AD champs out class them in that they can just get a life steal item (or deaths dance) and be able to stay in play for ridiculous spans of time. Especially resource-less champs. Not to mention you have to spend gold on your mana stat if you do have mana, options of which are limited.
Defence items cant hold up with all the damage everywhere.
I wish runes were standardized across the different types, so that i could persay make a page with magic pene, armor and hp per level in red,yellow, blue respectively, and not have to lose stats for taking armor blues instead of taking armor yellows sort of thing.
Just some opinions :/