My RIR is super aggressivo. He has been kicked numerous times, by everyone in the family, and beaten off once by me with a broom. But, he takes care of the ladies like no other, and won't even eat until they've had their fill, so I've learned to admire him. Frankly, I wanted to kill him when we first took over the flock, but my wife wouldn't let me. I'm glad he's there to notify me of predators or tresspassers, because he is much more vocal than the hens, who rarely project any loud sounds except when laying.
The worst thing though, is that he won't let me handle the girls. He'll have none of it. I can handle him fairly easily (he becomes docile in hand), but he totally freaks if a hen calls out for help. The result is that I don't get to handle my chickens enough, and I think this has affected their overall health, or at least my ability to monitor their health. If he dies, I wouldn't be upset. Unfortunately, my two favorite hens were the ones that passed recently instead!