Most boring class?

[Servant]

Raiding is essentially boring unless you're on the pull team, which looks like fun, or you're a cleric in which case it's a weird combination of boredom and tension.

Leveling, I'd say druid has been the most boring. In part that's because I haven't played either of the top contenders, Wizard and Rogue. In part that's because I don't particularly care to solo usually. In groups all you do as a druid is help get people to the hunting spot, sit there, buff people, cast the same heal periodically, and port people out afterwards.

People who think clerics are boring, you just need to have ambition. Do more dangerous things with less people or funky class mixes. Chaotic fights where your tank is getting thrashed and your enchanter has problems with charm and your ranger is offtanking and you're keeping them up at the same time as running crowd control on mobs that have aggroed you, those are such a blast to heal in if you know your stuff.

As people have said though, the most fun class is bard, because it can be whatever you want it to be, or all of those things through the course of a fight. It's the least gear-dependent class imo, and the one that has the most need for a comprehensive understanding of what's going on in a fight and what you can do to help your group. Swarming itself is fun in limited quantities, and by the way allow me to bequeath unto you a trick for strafe swarming - If you strafe with W and A/D and the mouse, and then while you're doing that you hit the enter button (you might need someone to help if you don't have long fingers) then it locks in the strafe, allowing you to kite using only right-click mouse steering, which is much much easier on the fingers.