Is Arceus any good? (Speaking specifically about WIFI battles

[[robo9]]

After the pre-battle tintinnabulation is complete, please stare in awe and wondrous presentiment at what is conceivably the best Pokemon in the entire game.

This is the first sentence of his Smogon page (For Black and White, but still)

I don't deal with ubers too much (I have a disdain for using legendaries) but just look around Smogon. They know what they're talking about for the most part, and from what I understand they're pretty high on the God pokemon