It definately stronger and better, the premiership is competitive right down to midtable and then even Spurs is below that, in spain youh ave Barca and Madrid, Villareal who are 3rd and really not a very good side and Athletico 4th. After that you have teams like Espanyol who are very poor.
That said there seems to be more Spanish players playing for top sides in Spain and in England which is better for the Spanish national side who i think will probably win Euro 2008 this year.