I have both cable and DSL, if one goes down then I have the other as a backup. But DSL is the primary for most everything I do. I'm hoping we can get fiber sometime in the near future.
Poor by most university standards, but at least I now have a stable connection with half decent ping, rather than 100+ ping at <1Mb/s like I was getting at home. This is the minimum that we're getting, it's usually in the 3-4Mb/s range.
(Oddly enough the HSDPA/3G connection on my phone is faster than this)