Why do we hate certain characters? And when I say this, I don't mean every Roger Davis part, and, Barnabas is extremely limited (i.e., if you hate Barn in 1967, you still hate him in 1968, '69).
Once in a while, I'll think of David messing the ye olde bleeder valve. That (and combined with his age), would genuinely make him a sociopath.
Yet, IMHO, we like David...but, not just David, the various incarnations of D. H.
I personally hate Harri/Carrie, but, this is because I loved Amy. (I knew D. Nickerson as Violet, 30 yearsish before I knew her on DS.) I'll never forget the first ep I saw w/DN, I called my eldest daughter to come downstairs, and I said, "Look, you know who that is!!" She couldn't of cared less.
So, again, whoever you vote for, please don't make it based on the actor, but, rather the character.
Patti
P.S., I was trying to think of actor's to 'hate' specific characters, but, in all fairness, David Selby is quite limited, like Barnabas.
P.P.S., you can hate a character which you though was due to bad writing, or directing.