I can't go as far to say that, at all.
Montiel hasn't lost since 06, and that was a close split decision.
Comparing caliber opponents.
They both beat Maldanado.
Montiel KO'd him in 3 while Donaire KO'd him in 8.
They both beat Concepcion
Montiel KO'd him in 3 while Donaire won a 12 round decision.
Donaire beat Vic in 5, but Montiel beat Hasegawa in Japan in 4.
On paper Montiel has a better resume, plus he's a vet in there. Plus his body work is devastating. I think Donaire could win as well, but I don't know about blowing him out of the water or anything. It's going to be a really competitive fight. They have both looked really good lately.