Hati,
I own the Nikon 10x42 SE and the Canon 10x42 L IS, and have tested the 10x42 SLC at home, comparing it against the other two. The one I use is the Canon, because it shows me more. Of the other two, I would pick the SLC over the Nikon as it has better transmission, slightly more natural colors and less chromatic aberration than the Nikon, as well as being nicer to hold and waterproof.
The Canon is heavier and clumsier, but the stable image is worth doing some arm exercises for. Besides, it can be supported by a simple finnstick (a small monopod or a sturdy selfie stick) threaded onto its tripod attachment thread. Image quality is first rate.
Kimmo