Since August 1 (objectively, I believe, when the Bombers' season turned around), I'd say that the two QBs are pretty similar.
Collaros: 204/283=72.1%, Harris: 190/262=72.5%
Collaros: 2613/204=12.8yd/completion, Harris: 2392/190=12.5yd/completion
Collaros: 1TD for every 20.21 passes attempted, Harris: 1TD for every 20.15 passes attempted
Collaros: 1INT for every 40.43 passes attempted, Harris: 1INT for every 43.67 passes attempted
I have no idea how to calculate QB efficiency.
And,
Collaros: 9W - 1L, Harris: 4W - 4L (only played in 8 of 11 SK games since Aug. 1)
I know who I want as my QB on Saturday.