Michael,
The 1 1/2 miles makes this race a crapshoot, but I believe Brilliant Speed is one of the \"turf/poly\" horses that got moved up because of the way Churchill played on Derby day (drying out, cuppy track, with dead rail).
I prefer a different longshot, who may be a similar price. I don\'t have Santiva\'s sheet in front of me, but I believe he ran a huge race in Louisiana against Mucho Macho Man, where he spotted Mucho weight and was wider on both turns. I think he ran somewhere around a \"1\". I know it was aberrational against his other figures, but nonetheless, after the \"x\" in the Bluegrass, his race in the Derby has him moving in the right direction. He gets 5 weeks into the Belmont, and is now maybe 3 months from the \"1\". You could argue his pattern is \"circling back\" to the big figure and he is rested enough to run it.
To me, with Shackleford and Animal Kingdom likely to be showing some effects of their 3rd race in 5 weeks, if Santiva gets back to the \"1\", with a decent trip he could very well win, and he should be better than 10-1.