Actually this commercial was pretty good. It's made up of mostly gameplay footage which is better then the other ones. Not to mention for a game like Brawl all Nintendo needs to do is inform people it's comming out and they'll know what's happening.
I mean, the Halo 3 commerical was beyond horrible with NO gameplay footage and yet Halo 3 can manage over 3 million it's first month. For big name games like companies need to do is remind the fans the games comming out and that's it.