I normally really prefer reactive healing also, but for some reason I ended up liking scholar better than white mage in this game. So, like, try both and don't rule anything out.

As for the quests...the white mage ones are definitely kind of boring. The 1-30 ones are okayish. I also didn't mind the 60-70 ones, but I think I'm the only one.

I found the scholar ones better because they have a lot of the Nym-vs-Mhach-vs-Amdapor history involved. But it may depend on how much you like lalafells, because basically every ten levels that questline gets a new potato with a new potato name. The astrologian ones were really good, though, just because of Leveva's attitude toward Jannequinard and Kyokuho.

Finally, thank you for posting this thread, because it reminded me I haven't done any of the 80 healer job quests.