That is a personal choice.
What's wrong with warriors exactly? I soloed 3 timed ZA as prot in DPS gear without flasking, and even went on to kill Drakkara with the same setup in 2 attempts. They can either outheal damage on older content with Second Wind or get ridiculous self-healing from adds/trash with Victory Rush.
Demo locks are pretty awesome. You can go pet or petless, tank or DPS. Amazing AoE, and decent self-healing.
I actually feel much sturdier on my demo lock than on my ret pally.
I do kind of lean toward Paladin, more so than a Hunter. Mostly just because it can be a variety of roles, since I don't plan on just solo 100% of the time. The one thing I like about hunters, is having a pet by my side and I kind of like ranged more than melee...but I did always like the Paladin class in games. But I'm mostly going at it just for the challenge of trying to solo a raid...plus trying to get mounts and stuff that sometimes drop...is nice. And the achievements. I'm not really doing it for any other reason. Well that, and sometimes I just like chatting and not worrying about my role in a group. Sometimes groups feel like they rush through stuff, and sometimes I like taking my time.
Think I may make the paladin level 80...I may make a hunter alt, but having a variety of roles does seem rather nice. Thanks for all the help everyone