Having just migrated from an iPhone 14 Pro and Apple Watch 8 to an S23 Ultra and Galaxy Watch 6 Classic there's been a few things I can certainly day I appreciate on each platform.
With regards the Galaxy Watch 6 Classic, I'm enjoying the different form factor and how I interact with notifications compared to that on WatchOS. I also appreciate the ability to customise my watch with a variety of faces, something Apple doesn't allow beyond those it applies, strangely, or not?!
One thing I will say I appreciate more about Apple Watch over Galaxy Watch is ease of swapping bands. The mechanism on Apple Watch is easier with sliding the band pieces in and out, whilst Galaxy Watch band pieces are a little more difficult to get into place.
I find navigating nice and easy on the Galaxy Watch and like that Microsoft Authenticator is still available to approve via the watch on this platform where it was removed on Apple Watch months ago - when you have to use it regularly convenience is appreciated.
I know some have commented about the added weight of the 6 Classic, but I have to say I enjoy the added weight.