serie b has turned out to be very competitive, and for us it is more interesting, but lets face it we are not very objective. one thing is for sure this year's serie a has lost a lot of its attraction, it turned out to be a joke like you say.
as for la liga, it is really competitve but for the title challenge it's only barca, real and valencia. there are a lot of good squads there(sevilla, stletico, zaragoza, villareal) but i don't see any of them going so far as to win the championship.
so again all i gotta say is: vamos los ches!