You're not alone. I've used Emacs for over a decade, but I fell in love with ST2 almost immediately. And although it may cost me some cred with diehard Emacs users: I'd much rather extend my editor with Python than elisp.
Still, Emacs is my bus factor backup plan. I prefer ST2 today, but it's nice knowing there's a pretty darn excellent fallback if it disappears for some reason.
Org-mode is a big stumbling block for me as well and it seems like most of its features would be possible in Sublime Text 2, but the sheer degree of integration that it's managed with Emacs' various hooks and processes might be much harder. The various org-insinuate functions, the packages to hook it into magit (or rather ST2's equivalents) & Mew, etc. are all pretty important to me. I haven't looked deeply into customizing ST2, but is it actually feasible to hook into it so deeply?
Still, Emacs is my bus factor backup plan. I prefer ST2 today, but it's nice knowing there's a pretty darn excellent fallback if it disappears for some reason.