A1000. Grew up with it, spent many hours with it... I love the detached keyboard, which IMO has a better feel than the later (500,2000,3000) keyboards. I like the feel of the original mouse as well, although the A3000 "Pregnant" mouse just about ties it. ...oh, and the ability to change the keyboard cable by just throwing a telephone handset cable on there.. i used a 15' cable in college which worked great!
But I like the relatively small size (compared with A200), flexibility to easily run various kickstart versions, so i can try out 1.4, or the pre-releases v27, v29... nice storage of the keyboard, etc.
Then again, I'm one of the crazies that likes the look and feel of 1.3 over the 3D look of the newer OSs. heh.
