X-t10 vs X-t1 vs A7 vs a6000

Option 1 : X-t10 with 18-55 kit lens. In the future might get the 35mm f1.4. Cost for that system is 1249CAD + taxes

I wanted at first to get the X-t10 body with the 35mm lens only. But it is more expensive and the discount for the 18-55 as a kit lens seem interesting (and it's a good lens from what I read)

I like the x-t10 because it is compact, come with the integrated flash and have all the same feature and quality as the x-t1. The auto mode would also be interesting for my wife that like to take picture but can't seem to wrap her head around aperture, shutter speed, iso, etc.

Option 2 : X-t1 (USED) with 18-55 kit lens. Same thing I would probably get the 35mm in the future. Cost is the same as the x-t10.

In theory I get the better camera, but it is heavier and larger, there's not 2 year guaranty on it versus the new x-t10 and no auto mode for my wife or when I want somebody else to take a picture. BUT I would have the larger viewfinder, the water resistant, the iso dial, better build quality.

Option 3 : a6000 with 16-50 kit lens (open box model) and the 55-200 lens. Total cost of this would be 1100$ CAD + taxes

I get a better resolution here at 24mp vs the 16mp of Fuji. However, the body of the a6000 fell a bit flat for me (felt cheap) and the view finder was unimpressive. But everybody online seem to rave about how amazing this camera is for the price and true I would have 2 lenses for a lesser price than the x-t10. On the other side, both lenses felt cheap.

Option 4 : A7 body (USED) with the 55mm f 1.8. Total cost of 1349CAD + taxes (on the lenses only).

Here I get a full frame camera which was originally my first choice before discovering Fuji x system. But it is an older camera and I end up with a cheaper 55mm lenses and no zoom whatsoever (which I like to have as a first lenses for flexibility).

But I can grow with more lenses in the future and upgrade someday to the A7ii and also used vintage lenses if needed with adapter.

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In term of Sony vs Fuji I like the sensor of the Sony better for the resolution, but I like the final picture of the Fuji better. However I've always been a RAW shooter and Fuji would probably force me to rethink that and go JPG more (but the end result do look amazing!).

I like the way the fujii handle and feel much better than the a6000. As for the a7 I haven't had a lot of time with it. It does seem to handle quiet well to.

I like to take low light photography and have a good depth in my picture. The FF would have an advantage here, but the lens selection of Fuji seem MUCH better in every aspect (better aperture, better build, good price for the quality).

So far, as of right now I was going for the X-t10. But the X-t1 do look very interesting as do the A7. I think the a6000 would be my last choice.

I want a system I can grow into and not get burn like Samsung. I want to invest for a good while and be sure I'll have update, new lenses, new body in the future.

So I need your help, been looking at days for days / weeks and can't decide. I don't want to end up with another Samsung where I wasted a lot of money for nothing. I want to make the best choice possible for today and for years to come.

Thank you !