Top three calculators ?

[Keith Midson]

Oh that's a tough question ... for me personally:

HP28S - my first HP when I was studying engineering at Uni - learned to program RPL with this)

HP35S - I've become quite fond of this 'modern' machine, although i'm equally happy with a 32Sii or 42S and these tend to get rotated on my desk along with 48SX, or a 65 just for fun.

HP12C - I've got quite a few and there's always one on my desk now that I run my own company.