I voted for Manaphy in OU. I would definately like to see the Ubers tested more than anything else. I would definately be pleased with the Lati@ in OU testing also.
Stealth Rock is something I would hate and don't think needs to be tested. As broken as it may seem, I think Stealth Rock is vital to keep the best pokemon in check. Things like Gyarados, Salamence, Legendary Birds, Yanmega, Bellyzard, etc. become increasingly difficult to handle without it. I think gamefreak invented Stealth Rock because pokemon has always revolved around Flying pokemon ever since RBY. Another thing that would take the fun out of the game is that frail flying pokemon and levitators now force you to run Tar or Abomasnow. I could easily make a pokemon team of Gengar, Azelf, Yanmega, Gyarados, Salamence, etc.. equip them all with Focus Sashes and now a counter to each of these pokemon becomes less of a counter since I am guarenteed two hits against you... Since they all are pretty swift... that two turns to three... Yeah... three. Of course, all of this is speculation because I haven't played in the Stealth Rockless tournament.. but that would be my biggest fear.
What? When was Lati@s suddenly debatable? I thought they were the most solidly positioned Ubers in the tier?
I thought that Latios is faster, stronger and better than Garchomp in nearly every way (barring it being special and Chomp being physical) so how can it be even thought of as OU?
The argument is testing them without Soul Dew, which they aren't broken at all (hell, I don't think Chomp is but whatever). Salamence, Garchomp, and Dragonite do physical sets better, Choice Specs sets are still walled by Bliss / Regice, Calm Mind sets still have trouble against the inevitable Metagross, Weavile, Tyranitar, and Scizor CB Pursuit / Super effective neutering, etc. They definately are testable in OU (and playing in the tournament was fun!).