From most used to least:
AT72EDii
AT60ED - mainly b/c it's my newest scope and I'm still exploring its capabilities; plan to use it mainly for travel
ST80
AT50 - when time is limited this is a three-finger carry out the door with mount and pod
ST102
The 72, 80, and 102 ride on a ScopeTech Zero on a Sirui CF with geared column. The 50 and 60 go on a AZ Pronto on an Innorel RT90C with the sliding column. I occasionally fire up my AZ-GTi with the 60 or 72, but not very often.
I lean very much toward light and portable, but I confess I've been eyeing a few Dobs lately, mainly 10-inch. But that brings up questions of storage and then transport if I want to get under darker skies.