Past roosters :
Scotts Dumpy mix (Scott)- very good to his girls, terrified of me (can be a good thing); was killed by raccoons
3 Barred Rock cockerals - ganged up on the hens, fought each other, flew at my face my face during a fight ; were killed by me

1 Rhode Island Red - attentive to hens, aggressive with dog, spurred me in the face when I got eggs out of the nest box ; shipped to auction for meat
Current Roosters:
1 EE (Czar)- very subordinate to me, very good with ladies and good fertility rate with 23 hens ; I gave him to my mother in law because he would NEVER attack anyone & she needed a trustworthy Roo. I am going to hatch some chicks from him
1 Black Australorp (Big)- not a great hawk watcher, doesn't breed many hens, lazy and eats a lot of feed ; he will be processed after I hatch some chicks from him
1 Black sex Link (Rob) - very alert for predators, very attentive to the hens food giving and otherwise, subordinate to me but not skittish ; he will be kept unless his attitude changes
I will be getting some Black Copper Marans so I will see what their temperaments are like.
An important thing to keep in mind is HOW the roosters are raised. I have noticed that the roosters raised like pets are more aggressive than the roos raised like livestock.