Jazil was very average and won a weak Belmont, although the time was decent IIRC.
Rags beat Curlin because of a slow pace, not stamina or outright ability.
Casino Drive looks like he should be better than Jazil. Is Big Brown better than Bluegrass Cat and Sunriver?
It could be a good race. Brown has that huge tactical speed to go along with his huge ability and stamina.