Garcia surely has a better resume..

[Ron Swanson]

Neither one wants any of Spence.

So true.

Brook looks as though he wants it and is probably the only one that could possibly beat him..but if he does loose he blames the weight and will either go Khan or canelo for the money.

Brook only wants it as a last resort. I mean, he would even rather face completely irrelevant Khan.(and has said so, would rather fight Canelo, Cotto, Pacman, Khan) So it's not like Brook is searching to prove himself . Brook wants to hold onto his belt if he can't get paydays to help get paydays later.