I know most people here are Blender users, and that's totally fine, but liking it or not, Max and Maya are both bigger and more used standards. .FBX is super friendly to work with and lots of third parties can import it (zbrush, f ex) can save animations, uv's, rigs...
I must admit I really hate Blender.

But it does what I want with only a minimal amount of fighting and I think I'd be afraid to go through a similar learning curve all over again.
I don't doubt that people who are much more creative types than me would go for Max and Maya. Hopefully the official editor will import and export more convenient formats for all, though I've no idea what to expect.
I am kinda jealous of people who just have an innate skill for modelling though, and manage to create some seriously awesome stuff while I'm dragging around one vertex at a time. My 2D skills aren't any better either.