New Hexakill is...
Kinda crap, to be honest. The old Hexakill worked pretty well since it was on Summoner's Rift, but Twisted Treeline is just too small. Yes, I like the chaotic giant fights, but because of the map, and the extremely slow EXP gain due to having so many people in such a small area, the SLIGHTEST advantage snowballs completely out of control. Games aren't even remotely close, and it's just not fun at all for the losing team. I understand that it's a bonus mode and it's not really supposed to be balanced or anything, but new Hexakill is so grossly unbalanced that I just had to comment. At least permaban some of the more egregious champs on it or something. Several champs got permabanned from URF Mode so it's doable.
On that note, BRING URF MODE BACK FOR THE LOVE OF GOD. I've played every single bonus mode League has had to offer, and none of them came even remotely close to how fun URF Mode was. Not even ARAM can compare with URF. Bring it back on weekends, or once a month, or something. That way the other modes actually get some playtime.