I think Firing Line is the best choice for the Preakness and Dortmund to the Belmont. But then again, owners aside I'd keep both of them out of each race if I was Baffert. That said, he won't since he's a horseman first and a businessman second.
Aside from the obvious, what would adding an extra quarter mile do for a horse that had the race is own way and folded up after a mile and a quarter?