I'm currently a DSL user and have been for the last 9 years. Recently I took steps to get my home wired for cable modem because of the "fabulous" 12Mbps download speed.
Tests from various sites show that yes, cable modem seems to blaze through and shoot right through the gauges of various speed test sites. However every site that also tests for QoS or quality of service, rates cable modem as dismal compared to DSL.
For example, DSL for me is rated at 3Mbps download. I consistently get about 2.5Mbps but get a slow but again constant 384Kbps upload. The QoS is at 98%.
On cable, I get a blazing 21000kbps (~20Mbps) download however the QoS is at a range of 34% to 80%. They point the problem at Comcast's routers losing a ton of packets.
While browsing sites, I cannot tell what is faster, however downloading files is much better with DSL.
I'm not sure how did cable get such a great reputation while its ripping people off on the backend. What is your take on your broadband connection?
I think I may stick with DSL as it provides a more consistent throughput. Right now, the same site downloads 320Kbps/sec with DSL and 180Kbps/sec with cable. Wow, cable sucks. But then, when browsing, cable seem snappier.