Following on my first AZ was a Vixen Porta, gave good service but the slowmotions needed adjustment often. Later a Vixen APZ - if you think buttery and smooth this is just that. Needs counterbalance and rather big for capacity of 6/7 kg. I prefer the mount configured as that rare thing a manual Equatorial. Could not find an APZ photo so stuck in the AP ( best star hopper any way).
A David Lukehurst 14" compact dobsonian was lovely to push around the sky but eventually I grew tired of assembly and colllimation for each outing. Still it is the one that showed me many 'new' Messier objects.
Next fancies are a Scopetech Zero for the Questar and possibly a Rowan AZ100 for the Tak - but such decisions need long consideration. I notice no mention of iOptron AZ Pro but perhaps this post attracts a different style.
There is also an AZGti but hardly worth mention, it works but lacks soul.