What tank?

[nina]

So I've never played a tank, casters yes, wizard, enchanter and the mighty necro. Moonlighted as a monk to 52 and loved it so I thought I might be missing out on a key area of the game.
That being said, I thought I might give it a go. I see a lot of SKs running around and the odd pally (though there doesnt seem a lot of love for them), a fair few warriors as well around Oasis in their overly tanked gear.
If I was looking at a tank, is SK the be all and end all? Are Pallys not worth the love or should I do straight warrior? How different are the play styles?
Any advice would be hot. My thought patterns are, at the moment, DE SK, or halfling warrior (love the XP bonus)... maybe troll warrior for regen