(Just in case it's not seen)

Warrior does have the biggest spike in enmity generation for sure, but Dark Knight can do it pretty well too. A Dark Arts - Power Slash will generate a pretty intense amount of agro for the Dark Knight, though not as much as the warrior being able to do their full agro combos with Unchained up for potentially several rotations. Paladins just don't have that same kind of snap agro to help them with pulls, so it is a good thing to take into account which type of tank you have and how much they can do off the bat to determine what kind of cooldowns you need to use when, like should you Diversion right on pull, or can you wait until you're about to start spamming Fire IV.