I highly agree with the Stealth Rock test. It is so centralizing that, as someone said, most pokemon with a 4X Rock weakness are simply discarded and even some not-so-powerful 2X Rock weak pokes are somewhat overshadowed. For example, with the addition of Roost, Articuno would have some very interesting selling points over Suicune, but that glaring SR weakness puts him out of question (dont misunderstood, a 4X Rock Weakness would still be a problem, but not a lot more troubling than, said, 4X Bug weakness on Celebi).
I would have said yes to the Mew argument until Platinum came out. Trick Mew is a pest, even in Ubers. It would basically tear the OU environment apart with its unpredictability, since it will at the very least kill one pokemon just to let you learn out his set.
Manaphy really is OU in my opinion. People always called him Uber because of Tail Glow and Hydratation, and while the latter does no longer enjoy Kyogre's presence, a +2 Sp Atk boost is not something OU cant withstand. Swords Dance is still a lot more frightening since, while Blissey soaks up even special boosted attacks, Skarmory can eventually fall to SDed attacks if they are not resisted.
I cant understand why people are against Soul Dew ban. It is not like Yache Berry on Garchomp because the former is an item ban, while the latter is a combo ban which is unacceptable in my opinion if its legal. And remember that even in play the Lati twins are playable with Soul Dew banned while Thick Club, Light Ball etc are useable, so dont take this as something weird.
Guys, DT can be cool, but it is broken as hell. Ok, a Lucario with DT is not broken, since it would lose a lot of turns setting it up, eventually falling, but think to a Togekiss with Roost/Baton Pass/Double Team/Air Slash. Unless you Taunt it swiftly it can easily Baton Pass a +6 Evasion Boost thanks to its bulkiness and roost recovery - DT also protects it from Whirlwind. And while, as I said before, a Lucario with DT is not broken because it would only have 3 other moves to play with and it would lose a lot of time setting up risking to lose it setup if the opponent does not miss all the time through the set up, a SD Luke with +6 Evasion is nighly uncounterable. DT would make Baton Pass as broken as ever.
Arceus need to be played in Ubers. It is not too powerful, and i cant really see why we must wait its release, at least on Shoddy. We know Arceus exists, we know it is available in game when Azure Flute will be released, We know he is a pokemon. Give him a chance.
Species clause, well... its ban would be unhortodox to the least, but its too soon to say if it would break the metagame. For sure, it will enforce a lot more centralization. If Garchomp would not be Uber now, i would see as perfectly viable and somewhat frightening a team with 2 or even 3 or more Garchomps - if a Yachechomp would generally cost you 2 pokes, how about 3 Yachechomps? 2X3=6...