MatthewK
I think that’s it for me!
For the past 6 years, I've shot Fuji for my family/travel/casual stuff, and Nikon for birding. The systems remain totally separate, I've never mounted a standard length lens on any Nikon camera, nor has my Fuji ever seen a telephoto. It's been a great setup, I have no problem switching between them. However, as of late, I've been considering condensing down to a single system in order to eliminate the need to bring two different systems on travel. Being able to shoot birds in the morning and my kids on the beach in the afternoon with the same camera, sounds reasonable. So, it got me thinking...

On the left is my current Fuji kit, and the right is the comparable Nikon kit. The size increase is rather substantial, and that's the main issue I have with such a move (and the reason I left Canon for Fuji), along with Fuji being an absolute blast to shoot with. The tradeoff is that I get better lenses and a streamlined kit. One exception though, is the Fuji 35 f/1.4: it's my absolute favorite lens, and I won't ever sell. The other two, the 18 f/2 and 16-80, meh, I have no love for them.
So, I lied a bit when I said my Nikon hasn't seen a standard lens: the other day I brought home the Nikkor Z 50 f/1.8, just to see how I liked using my Z8 as a general camera... way too big and heavy, no way in hell I'd ever use it for casual use. However, someday I'd add a Z6III (rumored at this point) in order to get the size down to a reasonable point where it isn't laborious. But then that begs the question: aren't I back in the same spot again, needing a separate camera for casual use and another for birding? All that shuffling about, and I wouldn't be any better off than I am now, right?

How does my Fuji X-T5 + 35 f/1.4 compare to the Nikon Z8 + 50 f/1.8 S
Straight off, the Nikon trounces the Fuji in AF accuracy and snappiness, and the lens performance is a good step up from the venerable Fuji in terms of sharpness and background blur, but I knew that going in, so no surprises there. The thing is though, the X-T5 + 35 f/1.4 is no slouch, it performs more than well enough for anything I need, and it takes some of the best looking photos I've ever seen in terms of look and feel; coupled with the X-T5 and the Nostalgic Negative film sim, it's a pretty special thing (examples in next post below).
At this point, I think I'm at least going to stick with the X-T5 + 35 f/1.4 and 18 f/2, and sell my zoom lenses that don't see any use. On the Nikon side, probably pick up the 28 f/2.8 and 24-120. The good thing is, these lenses aren't all that costly when bought used, so it'll allow me to see what's what without breaking the bank.
What would you all do were you in my shoes?
Matt

On the left is my current Fuji kit, and the right is the comparable Nikon kit. The size increase is rather substantial, and that's the main issue I have with such a move (and the reason I left Canon for Fuji), along with Fuji being an absolute blast to shoot with. The tradeoff is that I get better lenses and a streamlined kit. One exception though, is the Fuji 35 f/1.4: it's my absolute favorite lens, and I won't ever sell. The other two, the 18 f/2 and 16-80, meh, I have no love for them.
So, I lied a bit when I said my Nikon hasn't seen a standard lens: the other day I brought home the Nikkor Z 50 f/1.8, just to see how I liked using my Z8 as a general camera... way too big and heavy, no way in hell I'd ever use it for casual use. However, someday I'd add a Z6III (rumored at this point) in order to get the size down to a reasonable point where it isn't laborious. But then that begs the question: aren't I back in the same spot again, needing a separate camera for casual use and another for birding? All that shuffling about, and I wouldn't be any better off than I am now, right?

How does my Fuji X-T5 + 35 f/1.4 compare to the Nikon Z8 + 50 f/1.8 S

At this point, I think I'm at least going to stick with the X-T5 + 35 f/1.4 and 18 f/2, and sell my zoom lenses that don't see any use. On the Nikon side, probably pick up the 28 f/2.8 and 24-120. The good thing is, these lenses aren't all that costly when bought used, so it'll allow me to see what's what without breaking the bank.
What would you all do were you in my shoes?
Matt