I usually buy Cosmo and Marie Claire. English magazines are so overpriced here. When I'm on vacation/biz trips in another European city, I make sure I bring home some mags. We're paying more than 10€ for a copy of Cosmo UK here!
G&L bible (though it's really a mook rather than a magazine)
And random magazines from other countries jam packed with food for the eyes.
..though I don't really subscribe to any of them
Some magazines i can pick up and read through again and again and again and still find inspiration (and like i got my money's worth). You know a good issue when you read through it! They're the ones I buy. With me, it's not a question of loyalty- it's always a question of content XD Even decent magazines can release some really crappy issues.
I love collecting issues from different countries as well, especially those in foreign tongue. Comparatively, they have a different feel of the trends/fashion, add another dimension and really give me that extra global perspective magazines at home don't really pick up.