Track racing is great fun and I enjoy it much more than road, but still love crits the best.

Track = top-fuel dragsters, plenty of adrenalin
Crits = British Touring Cars, with plenty of biff and barge
Road = driving from Sydney to Brisbane on the Pacific Hwy with 1927's Greatest Hits as your only source of entertainment: dull

There ya go, I've dissed road racing in a road forum