To be fair, the comparison is ... unfair!
You are comparing jpeg straight from Canon SL1 to Raw file processed in Adobe Photoshop CS5 with manual White Balance set up for the Nikon 3200 (that what exif of full file say).
There is no doubt the Nikon D3200 produce good Raw files but for this type of Camera, it is unlikely the user will purchase Photoshop and spend a lot of time tweaking them.
This is a good example of bias.
Comparing real life jpeg with tweaked Raw.
Result seems quite good and with the 40mm, it could nearly be a nice street camera.