A1200, by far. With some trapdoor RAM or a cheap accel with RAM and a CF card expansion they make for a terrific gaming machine with WHDLoad.
Add an accelerator card and a PCMCIA NIC and they are a pretty versatile and affordable little machine. I never cared for the wedge Amiga's at all for the most part, but I had a lot of fun with the A1200 I owned fairly recently.
Expansion capabilities at a fairly reasonable cost and reasonable availability of expansion hardware for A1200's can't be beat, either.
