I'm a Saints fan (Southampton) but I also keep tabs on my old home team, Crewe Alexandra, who are in the old first division (now the Coca-Cola Championship). Oh, and I also keep track of my favourite Scottish team, after they were kind of drummed into my head by the Boss, so go Livingston *g*
Southampton are the team who have been in the top division in England for longer than any other (20 something years, I can't remember exactly) but we're always one of the ones who create excitement lately, with pretty intense relegation battles. This season looks pretty bleak, but hopefully now that's going to turn around a bit, having just picked up a win against Liverpool.
In general though, any British team in Europe always gets my vote, and of course the national team above all else. England is long overdue a major trophy or two, and although it's been the case for a while now, we've really got a team now that can make it happen