I love the positional requirements for DRG because it requires me to be constantly active and paying attention to what's going on in the fight rather than just facerolling the keyboard. I find tanking and healing to be incredibly boring, personally. The dance-party-like fights are my absolute favorite kind-- you really have to know the mechanics and your own rotation and be able to anticipate and react to things very quickly.

Otherwise it would just be "park yourself on the boss' flank/backside and just whack it."