Spain for me is a very boring and dull side. Same as Barca.
Barca and Spain have copied the TOTAL football style of Ajax, Michels en Cruijff and turned it into a boring, negative and feminine style of playing.
Ajax attacks with the ball, spain and barca defend with the ball.
Ajax total football is based on positive style of playing ie. more attacking, riskier, more direct, utilizing more imagination or to put it bluntly: its an attacking filosophy based on a supreme confidence in ones ability and in the team to play utterly dominate and methodically destroy opponents. Barca and Spain dont methodically destroy opponents.. its just a bunch of really talented individuals passing around to each other, trying to bait the opponent and waiting patiently untl the opponents fucks up defensively.
This, to me, isnt a sign of methodic destruction of opponents a la the ajax school. Ajax doesnt wait until the opponents fuck up, it methodically carves the opponent a new one. Ajax '95 averaged 46 backpasses per game to Van der Sar in order to stretch the field of play, to create the spaces to carve teams up. Spain/ Barca dont do that. They just play what we here in Holland would call 'het positiespel' or in english the "position-game". Take one or two touches, pass and move, repeat until defender fucks up. Nothing special about that imo especially with the players del bosue has available.
Barca and spain play football negatively imo. The play is based on the concept of possessing the ball at ALL times, this even supercedes the notion of attacking with the ball. This implies fear. A fear of losing the ball, a fear of falling 1-0 behing, a fear to utilize available individual talent and footballing imagination at its maximum capacity.
So yeah my verdict would be for both spain and barca that they are both boring to watch relative to the individual talent comprising those two sides. You would expect more risk-taking, more forward-thinking and more self-confidence from the calibre of players in those sides.