Because I was on holiday, i will post my thoughts now, not earlier.
Coop:
I am dissapointed with Coop. (Except for ACZ)
It seems too cramped now, and i don't see the point of ERZ if all it is is a bunch of death traps and a good boss with HORRIBLE sprites. I literally preferred all 1.04.9's sprites bar Knuckles.
Match:
FTW. Match just plain wins.
The weapon system makes the game seem less overpowered, as well as each character having special advantages. Bravo!
Team Match has a much better system, too. :D
CTF:
Not tested yet. (No time! D: Holiday came too soon.)
Survival/Hide N Seek:
Fun! I would have preferred to have the old Tag ASWELL as these, but that's a small price to pay for awesome.
Hide and Seek dosen't seem to have many maps fitted for it's gametype, so it can't be unleashed to it's full potential.
Survival, on the other hand, is perfect for everywhere. The zombie hoard is coming... Heh.
Race:
One word: FAIL.
I am extremely dissatisfied with Race. I thought they would have improved the system a bit, making the characters more even. (Like SRB2 Riders did.) No such luck. Not only did they not do that, but they also, no offence, RUINED Quicksand Ruins! (No pun intended)
Aaaaand, i can't remember anymore. So, those are my opinions. (Opinions mean nothing. :P Just sharin' em.)