Hmm so many pokemon with high HP and offensive stats, while many pokemon with low speed and defenses. Seems that GF are trying to make the metagames slightly more balanced this gen. I have so say, The starters disappointed me greatly. Jaroda has some potential if it gets Growth - UU/BL. Embuoo is an instant NU, unless it gets a great movepool - NU. Although I doubt it will be better than Infernape's. Daikenki looks like a good UU pokemon, with those nice mixed offensive stats and decent physical bulk - UU.
Pokemon with potential:
Zeburaika - It better have a good movepool though.
Gigaiasu - I see Trick Room making a return.
Doryuuzu - Fuck those stats with Sand Throw is nice.
Nageki - BL? A bulkier, offensively weaker Hariyama.
Warubiaru? - Has decent stats, nice speed to work with and great Attack coupled with Intimidate. Also, Earthake Spiral @_@
Hihidaruma - 105 HP/140 Atk/95 Speed, sorry what
Desukan - If this has Pain Split, I see potential as a spinblocker.
Aakeosu - Insane stats with crippling ability and Stealth Rock weakness.
Chirachiino - Ambipom v2 anybody?
Shubarugo - Wow stats, but horrible STABs.
Shibirudon - Great stats barring speed, with legendary typing and ability.
Shanderaa - It could pull off a Pory-Z and fail.
Kojondo - Regeneration?
Urugumosu - Typing fails, but stats and STABs are full of win.
Borutorosu - Movepool better be good with those nice stats and typing.
Ubers:
Ononokusu - ...
Sazando - So. Damn. Uber.
Reshiram & Zekrom - Insane. Reshiram's typing might prove some problems, and lack of good physical stabs for Zekrom might result in fail. Otherwise, O_O
Kyuremu - This thing is god.