"Given the excellent record of Criquette Head in the 1,000 Guineas and the support we have seen today for A Votre Sante, the filly must command respect in a market dominated by just three fillies up to now," said Ladbrokes's Ian Wassell.
Henry Cecil's Bosra Sham, who followed up her success in a Newbury maiden with a three and a half length victory over the John Dunlop-trained Bint Shadayid in Ascot's Fillies' Mile, heads the market at 2-1.
Blue Duster, trained by David Loder and unbeaten in four outings as a two-year-old, is second favourite at 7-2 with Bint Shadayid 7-1. Nibbled at in the betting for the 2,000 Guineas has been John Gosden's colt Pommard, who is now 20-1 from 25-1.
Saturday's Classic trial meeting at Kempton might throw up a lively outsider for next month's Guineas meeting.
Four of the 18 fillies entered in the Masaka Stakes - Miss Universal (trained by C Brittain), Sea Spray (P Chapple-Hyam), Sil Sila (B Smart) and Tamnia (J Dunlop) - are engaged in the 1,000 Guineas while four of the 13 colts in the Easter Stakes - Believe Me (Hannon), Elshabiba (J Dunlop), Line Dancer (W Jarvis), and Regiment (R Hannon), - are still in the 2,000 Guineas.
ANTE-POST BETTING ON THE CLASSICS (Ladbrokes): 1,000 Guineas: 2-1 Bosra Sham, 7-2 Blue Duster, 7-1 Bint Shadayid, 10-1 A Votre Sante, 20-1 Mezzogiorno, Ruznama, 25-1 Bint Salsabil, Sea Spray, 33-1 Dance Sequence, Last Second, Najiya, Silk Masque, Papering, Sil Sila, With Fascination, 40-1 others.
2,000 Guineas: 5-4 Alhaarth, 7-1 Mark Of Esteem, 10-1 Beauchamp King, 12-1 Royal Applause, 16-1 Rio Duvida, 20-1 Danehill Dancer, Pommard, 25- 1 Bijou d'Inde, Don Micheletto, Tumbleweed Ridge, 33-1 others.
The Derby: 5-2 Alhaarth, 14-1 Mark Of Esteem, Sacho, Silver Dome, 16- 1 Lord Of Men, 20-1 Beauchamp King, Mons, 25-1 Dushyantor, Bijou d'Inde, Mick's Love, Legal Right, Helicon, Loup Solitaire, Classic Eagle 33-1 others.
Oaks: 14-1 Bint Salsabil, 16-1 Solar Crystal, Lady Carla, 20-1 Ruznama, Shawanni, Miss Tahiti, 25-1 Bint Shadayid, Pricket, Overruled, Naseem Alsahar, 33-1 others.