Personally, I've never even seen a real PPC-based Amiga. By the time the PPC-based accelerators were appearing in numbers, I'd moved from the Amiga to the PC as my main productivity platform, keeping the Amiga stuff for hobby and nostalgia use. Plus I couldn't justify the cost!
I mainly use an A3000D and A1200, both on 3.1 - though the A3000 will be upgraded to 3.9 in the next month or so. I also own an A500, A600 and A1000 but these are buried in a cupboard.
I use UAE for when I can't be bothered with floppies and for testing things out.
- Ali