Top three calculators ?

[BitWiz]

#1 - HP-41 (any color, any flavor). Currently I have a 41CX Hypered (2.3X) & NoV-64D.
I'm hoping to get a CL if I get lucky.
#2 - HP-16C - This was my main work calculator from the time I bought it in the 80's until I got my
first smart phone.
#3 - There was an amazing calculator program for Windows Phone (no comments) but that has long
the way of the Do Do bird. I am still looking for a decent flexible calculator for Android. Currently
I'm using NeoCal which meets my needs but is only mediocre.

My first calculator was an HP-21 in 1975. So there will always be a very special place in my heart for the HP-21.

I went through all of the iterations of the 48 and I still have my 48GX. But it was never more than a fancy toy to me. IMHO the HP-41 is the best calculator ever built. Doubly so if you consider the technology at the time it was built.