I don't know if my perspective will change as I level, but I'm currently loving my lvl 59 WHM and much prefer to heal than DPS in group content. I enjoy figuring out which heal to use when during encounters while accounting for mistakes and weaving in as much DPS as I can during downtime. I don't feel like healers need complex healing/dps rotations to feel valued of challenged. Unless your group is playing to perfection, which I've yet to see in Duty Roulette, you can make the difference between a wipe and a kill by throwing out a timely heal, turn the tables with a raise or get that last add down in time by squeezing in that extra dps.