Neither!
Ooo... People sit here and quote d/l bandwidth rates. There is more to the internet than d/ing your DivX pornos at a faster rate.
Service, or lack thereof, has been my complaint with these cable modem internet providers -- not d/l rates. The problem is getting these com- panies off their fat arses to fix customer issues. I get daily mailbox fodder ads from Optimum Off-line for their "business" class cable modem access (near as I can figure it, it means you pay more for the same old same old shit service). Company personnel that might be interested in these services are also likely to have Optimum Off-Line in their homes. I don't know about you (generally, all of you) but in a business envir- onment, downtime is typically NOT AN OPTION. When people see this lack on service to address problems, they're not likely to bet the business on it.
You enjoy it. I'll stay with my 2xT1s, block of IP addresses, servers that are not a violation of any AUP/T&C and service 24x7 (365 days and holodays too). The only downtime I experienced was when a card in the DS1 TNI went south -- over a weekend -- and a field service engineer dispatch and issue fixed within 4 hrs.
My modem cable service is ancillary. It allows me to keep the kid's cyber-petri-dish (ie. M$ PeeCee) off of my network. Less bandwidth wasted answering to all of the PeeCee exploits putting one of these insecure toys on the internet invites.