I have a couple of each.....
I have 2 roos who are sweet and loving and follow me everywhere just to be by me and will protect the flock, then I have a couple roos who are very mean as they can be, they viciously go after the hens and my hubby has been flogged several times by them. these roos are now awaiting their fate in a separate pen. Sad but true, my sweet roos are staying, and they are so gentle with the hens, they don't even steal food from them when treats are brought out, they will wait their turn. the other ones, will chase everyone off just to have it all to themselves.
Ema