I wouldn't know which to really pick.
First I had the A500+ which seemed to do everything well, but later on I got an A600 which seemed to be pretty much the same, but a lot smaller (which was useful considering my room was the size of a closet). I then got a CD-Rom drive and squirrel for it which was quite cool. Then came the dreaded days when coverdisks started having AGA games on which I couldn't play, so eventually I managed to get an A1200 too. Then I picked up a HD as the CD-Rom drive wasn't much use without one, and here began my Amiga Format days. I call them that for the simple reason the main thing I remember doing was playing through all the reader request games on the disks and filling up my hard-drive with them (obviously as well as the commercial demos). Then I decided to pick up an accellerator, and tower the whole thing.
Many years later in the quest for the ultimate machine, I sold all the parts of my A1200T and bought an A4000. The A4000 isn't impressing my much at the moment due to all the current (and potential) faults, although I know it's a very capable machine.
I think if it came down to it, I would have to say my favorite machine would have been the A500+ because it didn't seen to have any problems and always worked. I would say the A600 as they were virtually identical but the A600 being smaller, but the A600 seemed very fragile, if you knocked it even slightly it would freeze, where as I could throw the A500+ across the room and it wouldn't even care.
All of the machines had memory expansions in them, so memory was never a problem for them.
