David, I think if you put every rider on identical bikes Alan Oversby would win! , but your point is basically correct.
I think the favouites this year are Oversby, look at what he did to palmer at the Pre-TT and Bill Swallow the track is much faster than it was in 2003 and his bike is faster than it was in 2003. Neither of these riders will have to make a pit stop and that is a massive advantage to have over the patons. Also Roy Richardson will be right up there on the Bullock Honda. Obviously the Patons will be in contention, and hopefully Paul Coward and Rich Hawkins will be close on Dave Nourish's bikes!