Your rooster is a Buff Brahma.
It is hard to judge the show worthiness of birds from photos, but here are a few thoughts:
Color: Good. You want Buff Brahmas to have intense, even buff coloration, with black striping in the hackle and saddle and a mostly black tail. The only fault I see in your bird's coloration is that on his wing, the buff is so dark that it has a reddish cast. That is a fault, albeit a minor one.
Condition: He looks to be in great condition, at least on the outside. Feather quality and condition is important at a show.
Type: Hard to tell from this photo. Looks to be pretty good, though. If I would change anything, I would shorten up his back a little and deepen his body. Brahmas should be massive birds, regardless of their color pattern.
Other characteristics: As Wyandottes7 noticed, his comb is not a perfect pea comb. Ideally, you would want a Brahma's comb to be a smaller pea comb, with three well-definied ridges. Your rooster's comb almost takes the shape of a single/pea cross. That may disqualify him under some judges, while others will find it acceptable.
Overall, he seems like a pretty nice bird. Probably not a show-winner, but he should still place high in his class (unless the judge doesn't think his comb is good enough).