Canon Pro 1 - Canon Rebel - Nikon 8800
You cannot go wrong on any of these.
If you are into action and/or low light photography I would lean toward the Rebel.
I think Nikon has bested the Canon Pro 1 with their 8800.
Here is a side-by-side comparison:
Notice the red stars - this is the owners overall rating of the cameras. Looks equal to me.
Just below the red stars is a link to the "owners opinions". Straight from the horses mouth.
Does anyone have an intelligent opinion about the Pro 1or the Rebel. Also the Nikon is a point of interest