I see that markablue was trying to decide,

between Cannon EOS 400D (DIGITAL REBEL XTi) and Nikon 80D

Another factor to consider is factory service ...

I can't speak about Canon service because I haven't had any problems
with either my Canon A1 (35mm film SLR I have owned and used for
about 30 years) or my PIXMA IP5000 printer.  IOW, I am very satisfied
with the built-in reliability of the Canon products I own. 

OTOH, my Nikon Coolpix 4300 did have a mechanical problem and I
had a major problem with how they handled the repair ...

I went through the usual contact, giving my info, how to wrap and mark
the package, where to send the camera, ... And then it went into a black
hole -- I could not get ANY status information from them ... not from the
website ... not by phone ... not by talking to supervisors ... everyone said
that they were going to revise the website ... etc. ... Eventually, it came back
repaired ... and has worked since ... but I was very unhappy for a while. 

--
Martin