The two cameras you're looking at are equivalent. I don't use either but have sold both. Canon has the price advantage when you get to adding lenses & tend to be more innovative in lens design. Nikon seems to be resting on it's laurels as a historically pro tool and is more conservative when it comes to introducing new lenses.
Physical size may be a deciding factor too, Nikon is just slightly more compact than the Canon.
When it comes to lens choice both mfrs. will give great results from prime lenses but I would stay away from the "G" lenses from Nikon primarily from a durability standpoint(plastic mounts).
For what it's worth, in 35mm I use mainly Pentax MX & KX after using Nikon for years.