As mentioned by another posted, it depends on how close/far you are to the central office and in my case, how old your home is. My home was built in the 1920's and the cabling of the telephone wire is shoddy at best.
For us it was a no brainer to go with cable since it's cheaper (based on our plan), we don't have to worry about central office distance (where we were far from), and the wiring of our place. I'd recommend going to dslreports.com to see how far you are from your CO and some of the issues involved with the internet service side (if it's a priority).
"Mistaking consequence for cause, I call this reason's intrinsic form of corruption." - Friedrich Nietzsche