I'm having trouble deciding which mage job to level. I'm mostly interested in leveling a healer/buffer, which eliminates blm. As some background, I'm a galka with both pld and drk to 75, so I can merit all magic skill for whm, rdm, and sch. Whm was my main on another character for two and a half years, so I'm familiar with what the job is capable of. It has changed a lot though with the advent of /sch and it's new job abilities. I loved the job, but I also find rdm and sch fun. All three of them are around lv 40, so I've had some experience with all of them (although admittedly, I soloed most of the way for all of them as /bst). I do mostly solo and low man stuff in end game. The main need would be for added flexibility in a low-man limbus group and Nyzul Isle.
Benefits for me leveling whm would be that I really like the job, and /sch and the updates would be fun to mess around with. Also, while I've never actually seen it, from what I've read on the forums Mystic Boon is pretty awesome. The major drawback would be that having whm wouldn't really benefit an all mage group, which would be a very real scenario for some limbus zones and the major thing I'm missing with my current two jobs. However, none of my friends have whm lvled, so it'd be unique.
Rdm would be great for buffing and enfeebling, but I'd be really sad about the loss of reraise and regen II. And as a galka, my convert ratio would be pretty crappy. On the plus side, I recently acquired a Joyeuse for my pld. Rdm is a solo powerhouse, but my pld solos pretty well as it is, and I won't ever acquire the gear necessary to solo truly menacing prey. I don't have many friends that have rdm lvled, so it would be a very welcome addition to a small group. My main duo partner and bff in game is a drg, blu, and blm, all of which would compliment rdm very well.
Sch is a bit of an enigma to me. I know it's a really powerful and flexible mage job, and it plays pretty similarly to whm. How well does it do in context of solo and low-man? Can stoneskinga and AOE en-spells offset the lack of haste and/or refresh? A couple of my friends have sch lvled, which doesn't benefit from having a rdm for refresh.
I appreciate any and all comments, including the obligatory "stfu noob, play what you like."