I always wanted to be a SMN/RDM... I think it would be fun and maybe show people that I'm not a main healer >>
I've played SMN/BLM in Qufim before. It was by accident mind you (I didn't know I didn't change my sub!), but the party was REALLY good. We were getting exp chains up to 5, and since there was a WHM in party I was just the nuker, playing gimp blm maybe? Worked well, with my Avatars being able to MB and then be nuking in between. Don't know if I'd ever do it again, but it was a lot better then people made it out to be.
But as for now I play SMN/WHM... because right now that's all that is seen as "usefull" *Eye roll here*