Personally, I play Baseball Stars 2 on NESoid, when I need my baseball fix. I tried Baseball Superstars 2009 and it was FAR inferior to Baseball Stars 2. Not even close.
To the OP, if Baseball Superstars 2011 doesn't float your boat, do yourself a favor and download NESoid and get any of the numerous ROMs floating around on the interwebs. Or SNESoid with either of the Ken Griffey games if you want something a little more modern... Of course, it is illegal to possess emulated games if you do not own the original...