I applied for '05/'06 originally, but shot off a grad school application when I was getting nervous about not hearing from anyone...long story short, I got accepted to grad school and went off to London for a year (which turned into two and a short stint in the Peace Corps and six months working "for" the Federal Government). But, before I made that decision, I'd actually already put down a seat deposit at a law school.
Differences? My LSAT went up by 4 points when I took it for fun and not because I'd studied, I have a masters that's directly related to the kind of law I want to pursue (which I think makes people take the whole "I want to do international human rights law" thing more seriously), and I've traveled a great deal.
I'm certain the time off helped, but it was also (obviously) longer than a year. And I'm not sure which of the things I've done since undergrad helped the most, but I'm having a much better cycle than last time around. Good luck!