Cable, but my hatred for ComCast is high and if I could replace them with anything reasonable at all I would.
Got a spare room?
http://news.cnet.com/8301-13578_3-10317118-38.html Since we don’t have competition, our providers don’t have to give great speed. I have DSL and I think it gets slower over time. It is through AT& T.
Cable at home, OC12 at work.