Armaldo is equal, if not better Lead than Rhyperior.
Better type and Rapid Spin is what Armaldo has over Rhyperior leads.
Rapid Spin is really valuable, it will let your Moltres comes into the field without hesitating, or it will let your surprise Sashed poke act like it's supposed to...
Other than that, they are almost the same. Rhyperior is more attack minded, while Armaldo is more defensive.
About Alakazam: damn, he's nice. You can go Specs,TrickScarf, LO+ 4 attacks,LO+CM, Sub+CM, Encoreannoyer, Dual Screener... even a novelty TauntRecoverCM is viable(ok, it's not).
We all know about its counters... Spiritomb/Chansey/Drapion/Absol or Honchrow in a pinch... still, he's really nice to have in UU. And he makes a nice lead in UU with Inner Focus preventing flinching from Fake Outs and such.
Oh man, Umbreon is back! Time to kick some ass out there AGAIN with Cursebreon.
Roserade going up is good for Venusaur... even better for Milotic.