Aaargh, long post lost ('expired token'... It seems to clear the Quick Reply box, damn.), not feeling like retyping it all. In short: I've been keeping a document with my thoughts on Blender, I'll clean it up and post it, I've already shared it with Metalliandy.
What I want from Blender is more customisablity to replicate my workflow, one that's formed through years of using Silo (and Wings before that). Selection Highlighting, consistent Sticky Key functionality where it makes sense, Something like Voidworld's 'Streamline Tools' (which are themselves a lot like Wings' Advanced UI), Radial Menus, multi-selection mode (I will explain the difference between this and shift-clicking vert, edge and face in Blender)
Blender already has a lot going for it, now I think I just need a few things to replicate my workflow. Its default keymap is silly, with its reliance on the first letter of the tool's name (which has extremely limited use, falls apart quickly with added tools), but that's fixable now Keymaps are no longer broken (I hear Brecht fixed them in 2.6, haven't been able to check).
Greevar: I don't believe you'll be able to 'turn off' ngons. But Bmesh brings a lot more than just Ngons. It brings a more modern mesh system, basically. This video goes into detail on some of the things it enables: http://vimeo.com/6430167