One thing I want to point out is we DO have the option to set the pet AI to where we can reserve certain skills for us to trigger solely, and just have the fairies do the Auto-embrace thing. I forget which stance it is right now (perils of the stupid 1017), but it works pretty well for that...

Beyond that, based on what I've experienced playing right now, it seems CNJ/WHM is designed for aoe/group healing, whereas SCH is designed for single target/tank healing. Both have merits and both work well, but it's all in how you play them. For thsoe who play(ed) WoW, it seems to be the difference between Disc and Holy priests. One specializes in mitigation and single target, one specializes in area/group/burst healing.