If you like fantastic passive mitigation (ie will almost never get spiked) go monk. Added bonuses: Paralysis, AoE Stun, AoE Snare, Ring of Peace, Transcendence, Roll, Clash, Disease dispel
If you like controlling your healing and using a plethora of defensives pre-emptively to avoid spikes go DK. Added bonuses: Death Grip, Mass Grip, ST stun, DnD snare, Brez, control undead (don’t scoff at this… some of those NPCs hit really really hard and it’s a free CC that’s literally a net DPS gain).
If you like having passive healing and kiting as needed to avoid spikes go DH. Added bonuses: AoE grip, AoE Silence, AoE CC, Imprison (doesn’t put you in combat if you walk past the mob!!!), Double Jump, Fel Jump
If you want to be a god of group utility and interrupts, with some healing and a bit of spikiness go Paladin. Added Bonuses: LoH, BoP, Bubble Taunt, ST Stun, Freedom, Sac, Conc Snare, AoE disorient, Disease dispel, AVENGERS FLIPPING SHIELD (I’ve carried groups hard on any boss that requires interrupts)…
I’ve never tanked difficult content with my warrior, so can’t comment on them, but from what I’ve seen… they don’t look like they’re going to be in a good place come SL.
Anywho, those are my general feels for each of the other tanks. Which you prefer is really down to you. I like each of them for different reasons, and depending on the content each have their own spot.