Ok. Do you really want me to name all the known racers I know? Really? I will, so bear down:
Man'O'War, Fair Play, Hastings, Colin, Sir Barton, Affirmed, Alydar, Assault, Count Fleet, Secretariat, Seattle Slew, Whirlaway, Citation, War Admiral, Sir Galahad, Omaha, Gallant Fox, Phar Lap, Seabiscuit, Native Dancer, Discovery, Dark Star, Northern Dancer, Nearctic, Nearco, Nasrullah, The Minstrel, Nijinsky II, Fanfreluche, Storm Cat, Sadler's Wells, Eight Bells, Go For Wand, Ruffian, Bold Ruler, Polynesian, Round Table, Majestic Prince, John Henry, Bull Lea, Holy Bull, Sunday Silence, Hail to Reason, Cigar, Bold Reasoning, Barbaro, Mr. Prospector, Raise a Native, Ribot, Nashua, Swaps, Damascus, Dr. Fager, Jaipur, Ridan, Kelso, Arts and Letters, Alysheba, Personal Ensign, Winning Colours, Easy Goer, Silver Charm, Free House, Curlin, Street Sense, Hard Spun, Donerail, Old Rosebud, Exterminator, Zev, Reigh Count, Count Turf, Needles, Tom Fool, Tim Tam, Twenty Grand, Carry Back, Hyperion, Kauai King, Canonero, Riva Ridge, Foolish Pleasure, Spectacular Bid, Sunny's Halo, Swale, Buckpasser, Ferdinand, Go For Gin, Thunder Gulch, Charismatic, War Emblem, Funny Cide, Smarty Jones, Giacomo, Rachel Alexandra, Zenyatta, Mine That Bird, Super Saver.........And on and on and on
As for my favourite...hmm. I think it would have to be Rachel Alexandra. If not, Native Dancer.