How is my B2W2 Team?

I was contemplating a good Pokemon team for my next file on B2, searched through the Unova Pokedex for a while and found these guys:



Could anyone tell me if it's a good choice, if it would be too much effort to obtain this team, or if I should switch them with something else?

Looking forward to your answers!

Please use the In-Game Team Help sub-forum for help on in-game teams, but please look over the forum guidelines before you post.