Looking at the last voting period and my laddering experience so far this round, here's my contribution to the discussion (I only read this page and the first two, so sorry if I get redundant)
Starraptor: It hurts. It's also incredibly easy to take down- any decent poke carrying a priority move can take down even the scarf set. I'm a fan of Mamoswine's Ice Shard or Arcanine's Extremespeed. That being said, to get into those pokes, you usually have to sack/fodder a poke, and even then they might switch out. Of course, if you've been paying attention, you might be able to predict the switch and blah blah blah. Overall I think it's counterable, and, as mentioned above, a glass cannon. If it switches in on something it can Brave Bird, it most likely will, as choosing Close Combat over it is a risky maneuver for many reasons. That being said, with like 90-95% of all Starraptors being choiced in some way, bringing in a rock or steel type (not Escavalier) on the predicted Brave Bird gives you a chance to set up. It can be safely countered most of the time.
Chansey: I would have to say that it's broken, but like everything else it has counters. I carry Knock Off on my Escavalier, because I can safely switch in on a predicted Toxic (to a special attacker/wall) and hopefully knock off the eviolite. Without eviolite Chansey is toast. Even if the eviolite isn't knocked off, whatever the opponent switches in to take the knock off is hindered by it (unless you've already gotten rid of the item). Chansey is still an insane wall and should just be banned in general for its near impossibility to kill outside of knock off and its ability to disable and cripple would-be threats after laughing off their hits.
SmashPass: What's the big deal? It's a gamble, like Trick Room, and can be broken. If you lose to it, oh well big deal you got owned. It happens- it's Pokemon!
Wob: This thing is a pain in the neck. If it switches in on anything that isn't a mixed attacker or isn't extremely powerful/haxy, it can weather a hit and counter it w/the appropriate move, or lock a set up sweeper into a move and tickle it down, leaving it really vulnerable to Dugtrio or the like. It's just way too powerful when played correctly to be in UU, or even anywhere.
Victini: Easily counterable and frail as all get out. Bulky water and/or pursuit much? Also, if you switch in a bulky water to take the V create, you can either recover it off somehow, or switch in your counter to the predicted switch in. Definitely not broken w/o sun.
Mew: Gosh darn you stupid thing! ALfjasdjklfhasldfhaskdfhasjdf. That's what I think about Mew. Unpredictable, and dangerous however it is used. It's difficult to take down w/no EV investment into bulk, not to mention once its defenses are beefed up with some EVs. While psychic typing is not very good defensively, it still proves to be a HUGE pain when you factor in softboiled. A well played Mew, in most of his many roles, can wreck many of the pokes in UU. Definitely bannable.
Celebi: Meh. Its stats are identical to Mew's, but it has many many more weaknesses, and is no more dangerous than many of the common UU special attackers. It can still annoy you sometimes, but it has so many weaknesses and counters in UU (like Escavalier and Heracross) that it's not bannable.
Definitely glad to see Kyurem and drought gone (though, truth be told, I rarely saw either- maybe one in three or four battles).
The most bannable pokemon in UU is Zapdos. Gosh that thing does NOT belong here. Two weaknesses? One of which (really) only has StoneMiss to use against it, immense natural bulk, access to instant recovery, and a great special attack? StallDos should just go die in a hole somewhere with its impossibility to counter. It laughs at its Stealth Rock weakness, sets up a sub, and roosts back to 100% from behind it, and if a suitable counter (like Raikou, believe it or not) is switched in, switches out to something that can take the hit. With StallDos it's REALLY risky not immediately trying to take it down when you have the chance, so most of the time the damaging move will be used, and can be safely switched into. StallDos can just obliterate almost everything in UU with even mediocre team support, not to mention a great player and good team support. Zapdos is the single most bannable poke in UU right now.
There's my two cents.
