The bottom line is that defense doesn't matter
This season has been the most frustrating to me - I like to play tanks or offtank roles (Tankplank was a favorite of mine), but it doesn't matter how much armor or MR you're building, this season, you're going to die within 2.5 seconds. I wish that last number were hyperbole, but it's not - it's frequently the recap defending a tower, no matter who you're playing or what you're playing against.
This, together with the ample bugs (ARAM snowball dash bug? C'mon guys, you didn't even change the way dashes are coded), and it just reinforces that I'm not going to spend any money on the game until Riot proves that they actually care about the product. Towers are paper, defense stats are worthless, and every patch or change doesn't seem like it was playtested in the slightest. I need to see more devotion before I'm shelling out hard-earned cash.