There is no best car, any 4wd touring car will do. Electric and nitro both have advantages and disadvantages, but electric is more common and easier.
If you wanna get drifting quoick-smart, go for the Tamiya Expert Built TT-01D, which comes complete with a radio set, batteries, drift tyres, ball bearings, oil-filled shocks and I think a charger.
For high speed drifting, drift radials are the go.

That's pretty much it, but of course you already knew all this because you searched through the forums, right?