No DSL provider can do that. Speeds depend on your distance from their facilities. To their credit, they tell you your distance when you fill out the service availability form, which you can use to get a rough idea of the quality of service you can expect.

I'd say sonic offers the best DSL service of any provider. I switched from att to sonic and got much better speeds over the same lines, probably thanks to a better backend setup. This privacy policy is another example of that.