Coral-Eclipse winner Sea The Stars is 5/1 with William Hill to stretch his unbeaten run throughout the rest of 2009.
John Oxx's colt made it three wins from as many starts this season at Sandown, adding to his 2000 Guineas and Epsom Derby haul.
The trainer revealed the King George at Ascot and International at York are possible next targets for his colt with the Irish Champion Stakes also firmly on the agenda.
Hills reacted by cutting the son of Cape Cross to 4/6 (from 5s) for the King George. Sky Bet are 4/7 with both firms offering the 'with-a-run' proviso.
Conduit, third at Sandown, is 11/4 next best with Sky Bet for the Ascot showpiece, while Eclipse runner-up Rip Van Winkle is a 5/1 shot.
Matt Doyle of Sky Bet said: "The three-year-olds may have come to the fore in the Eclipse, but neither has been confirmed a definite for the King George and last year's Leger winner Conduit will be more of a force stepped back up to 12-furlongs at Ascot."
Ladbrokes, Paddy Power and Sky Bet cut Sea The Stars to 7/2 for the Arc with the former firm pushing Conduit out to 14s from 10s for the same race.