I'd go for WHDLoad,A1200, '030. its real and good enough for most games. You can easily connect proper Amiga joystick and mouse for that 'authentic' feeling. (there are some USB joystick for winuae, don't know how good they are). Also most PC keyboard cant handle multiple simultaneous keypress.
forget about floppies on A500, they are just too slow,
OTOH the most important advantage of using WinUAE is that it runs on standard PC monitor. (but at the same time its a feature that spoils that 'retro feeling' most of all)
