I may be a little late to this discussion, but banning togekiss? Really? There are a lot of counters and checks to in the current OU tier.
Hippowdon. (Hippowdon can destroy any Togekiss, it’s not threatened by a Thunder Wave, and it can recover with Slack Off if you find yourself being worn down too much. The sandstorm also should help you take it down since it will negate Toge’s leftovers recovery.)
Jolteon. (Pretty hard counter, an air slash doesn't particularly threaten it and a thunderbolt can pick off just about any togekiss in 1-2 moves.)
Cloyster. (Again, can pick off just about any togekiss without taking too much damage. Possibly set up a shell smash in the process? Watch out though since that will lower your defenses, if without a white herb.)
Volcarona. (I was a bit hesitant to put this one on the list, but I’ve seen Volcaronas take Togekisses down before, especially if they carry leftovers. If you can get a Quiver Dance up, you’re pretty much set.)
Tyranitar/Excadrill. (Again a bit risky, since Togekiss can carry Aura Sphere, but most of them don’t and you can scope out it’s set pretty easily. Like Hippowdon, sand is your friend!)
Tentacruel. (A full special defense Tenta will surely threaten any Toge, especially with a Sludge Bomb poison. This is more of a check than a counter because it will rely on some luck)
Some tips for dealing with this pesky flincher:
Be conscious of the roost: Since roost removes the flying type from Togekiss, make sure you’re predicting this and attacking accordingly.
Watch out for Thunder Wave: Paralyzation can cripple a sweeper due to the speed drop, and it increases the chance you won’t be able to move from 60% to 70%.
Set up Stealth Rocks!! They’ll wear down any incoming Togekiss and make it much harder for them to switch into attacks.
Toxic that Toge: Toxic can seriously threaten a stall Toge, it can’t stay in as long and it has trouble recovering.
Taunt: Taunting can also stop a Toge from recovering as well as paralyzing with Twave.
Sand: Togekisses do not like sandstorms, it hinders their ability to recover, and they go down a lot quicker with that in mind.
Another point I would like to address, I hear a lot of people saying Togekiss takes no skill.
This just isn’t true. While it does take less prediction than your typical OU pokemon, you still have to time roosts correctly and know when to Thunder Wave.
In conclusion, no, Togekiss doesn’t belong in Ubers. It is however an annoying mon which anyone can play pretty easily.
There are simply too many pokemon in the tier that counter this mon that it can be considered an Uber.
Thank you for listening!
octet/