have both SBC DSL and roadrunner, DSL sux when using PPPoE, atleast down 5 minutes a day when my cable modem is only down 5 min every two weeks. i'm only 3k feet away from the central office so i get nearly the fastest speeds available, but if ur using Bittorrent, or any p2p apps or want to share ur connection, go for cable. running 2 or more BT's and the connection slows to a crawl, i could do 6 on cable b4 that happens
also, if u've noticed the RIAA is ONLY suing RBOCs and other non-media ISPs, they are not suing themselves (that is TimeWarner/AOL, and the rest of the cable co's), because the cable industry is in kahoots with the RIAA and the entire entertainment/media monopoly. hence if u subscribe to cable over DSL, u won't be seeing a subpoena (although high amounts of traffic thru ur cable modem will get u declared a "server" and they'll drop u)
but avoid cable if u live near a college hub....