I just started leveling one, and after maining a BLM, I'm having the time of my life. The job is so interactive. And when played right, it's absolutely devastating. Half my spells are instant-cast. And keeping an eye on my balance gauge while doing damage is a fun dynamic for me.

Keeping both white mana and black mana balanced, and then knowing when to charge in and melee - and then using Displacement to flip back to range - keeps me alert and on my toes. And also causes me to nerdgasm sometimes. Add to that, the job plays so fast.

That's quite different than BLM, where at 50, the job is basically a turret. I stand in one place and nuke. The only spell I have at 50 that I can use on the run is Scathe, or when Thunder procs. (Or when I use Swiftcast.) Don't get me wrong, I love BLM. But after playing RDM, I honestly don't think I'll ever go back to BLM again. :-)

Does the job remain this fun at 70?