Yeah, he looks really mean and imposing, but he's a mushball with people. It's just the shape of his face. I might just be me, but I think he looks a little less mean now that he's top man and things have settled a little after Mag's demise. he just seems a bit more confident now (still looks mean and imposing, though, when it comes down to it).
I have lots of good roosters--including two cockerels who are shaping up to be swell men someday. One is from Wun Wun over an EE (which means he's huge, tall, quiet and is going to cut a very imposing figure some day), and the other is Mag over a silver-laced Wyandotte (smaller, shorter-legged, also pretty quiet so far). Mr. July (the Sumatra) and the other two Sumatras I've had have all been really good roosters. They have shriller crows than the Brahmas, but are still quite protective of their girls and quietly assume dominance in a flock without any real fighting. They're less imposing and much smaller to the eye, but they really mean business when it comes to protecting their flock and yard from invaders (and they're eye candy).
The Breda, buff Colombian Brahma and Cochin have all shaped up to be excellent roosters, as well. It might just be that they're older and I never got to see the rapacious phase, but I've never seen them chase down a girl or harass her otherwise to get what they're going for. Suave boys. Same goes for the Sumatra so far.