I main a sorcerer but it'd be cool to be a DK tank. Saw a guy in PvP early who was nearly impossible to kill. Sword and board, 2 reflect skills, whip spam, engine guardian. Was ridiculous but impressive.
Passives that boost armor, stamina return via various methods (Which will be VERY helpful when they drop stam regen whilst blocking).
Self heals (Which a Sorc lacks).
Group shield.
Good CC.
Not to say you can't be successful with either... I've played with a couple of very good sorc tanks.... but in terms of which class has a better toolkit for tanking on paper... it's a DK hands down.
DK. That's easymode for pretty much everything. Far as tanking goes - awesome passives, awesome CC, awesome chains and best self heal in the game.
DKs are also at least as good, if not better(probably better really, don't depend on Overload), dps as sorcs if played properly and they actually have more going for heals right now as well.
There're good(even great) sorc tanks out there but that is a lot harder to manage. And lack of selfheals does make me sad.
Sorc is an awesome tank in 1.6 and wayyyyyyy better in 1.7.
U have dark deak wich heaks u and restores stamina 1sec after u hit the button.
U can stay at 8k Stam and still permblock in 1.7.
Get health to around 24k and rest into magicka. So much fun when u see the aoe dps that this little *** can provide.
Without cp increases to healin taken skilled it restores at vr16 over 2k stam and 3.4k health. Both dont scale with your attributes so there u got a nice dps tank wich is fun to play without shields. Can provide a build when im back home