If you choose cable, it doesn't really matter who the vendor that sold it to you is, more than likely a time warner van will pull up to your house to install it.
Think about it, even if you signed up on Earthlink's site, who owns the cable line? Time warner. Its all just rebranded service.
If you want DSL, SBC offers phone, satellite, and DSL.
If you want cable, TWC offers phone, cable, and cable internet.
I'd prefer SBC, because I'd rather have a real line rather than a VOIP line, but TWC might suit you better. Also, more than likely DSL will "look" cheaper than cable, however the speeds are different. I get 600 k/second download speeds with SBC, but i'm on the "elite plan" thats like $30ish a month. With the basic plan, you can expect 150 k/second download speeds.
With TWC you can expect 500-600 k/second for their quoted price.