I chose Ruby because
1. Brendan is the actual lead role (I fell in love in his manga counterpart)
2. Yay for Zangoose!
3. Groudon rocks.

I played Ruby first when i got them both and liked it most. Groudon owns Kyogre.

Ruby. It is better.

I like groudon more than kyogre due to the fact that Groudon has better stats.