Well it depends what you're looking for.. La Liga is all about Real and Barca (lets count ATM in aswell..). The PL is much more interesting, although United have been pretty dominant there's always a chance for other teams. Look at the current season, this can never happen in La Liga. Also even if the table leaders play a bottom team there's a good chance for an interesting match and the bottom team might even win.. this is rarely the case with Real Madrid and Barcelona. MLS might be competetive but there's not enough talent.. Talent wise I guess La Liga has the edge. And regarding Serie A - as much as their game is "tactic", let's face it there's not a whole bunch of quality over there.