I agree with you on the feel...I love arcane, just because it feels more like magic. As an avid RPer it just feels a thousand times more right for my egomaniacal "I'm smarter than you" elf. As well, I enjoy the recklessness of arcane AoE (which, although maybe not as nuketacular as fire when you drop a combustion on the whelps when fighting Halfus, still pulls some pretty numbers). I've been praised by healers in my guild for staying alive. I guess five years of dying as a mage has finally taught me how to keep an out out for danger like a spooked gazelle. A couple times I've respecced my fire to arcane since Cata dropped and tried it out, but I just end up missing the freedom fire gives me. I just wish mobility, somehow, could increase. I move around a LOT in fights where I can, a habit I got from druid healing in wrath, that I can finally maintain with fire and, to an appreciable degree, frost too. I wouldn't mind the boring arcane rotation if I could dance around with it, too. And nothing is more disheartening than an interrupted evocation. Accidents happen and not every fight gives you a clear chance. Maybe more practice is needed to avoid those situations, but I won't have the patience for arcane until I see some bigger changes to mobility. It's just too risky.

If anyone out there has any tricks up their sleeves that I haven't read on how to keep moving and keep DPs at least decent, I'd love to hear it.