Hard to say, I think everyone is pretty much in agreement that the race for the East is a lot less tight with Collaros back and Ricky Ray out hurt and that Montreal and Saskatchewan are trainwrecks. It boils down can Edmonton and Winnipeg both stay the course and stay over the east, which probably won't stay entirely status quo but will still be tight.
The east is likely to be a close race, as it generally tends to be. I think every is looking at Toronto as the weaker team of the three and Hamilton is slight favourites with Collaros back, but it's still too close to call. I don't see any of the eastern teams having an epic collapse, unless you count Montreal...who well....yeah...
The second half of the season tends to boast more inside division play, which means there aren't as many chances to take games from the eastern teams. Winnipeg is going to clearly have it easier though, getting to go back to back vs Saskatchewan as opposed to Edmonton having to do the same with Calgary. Given they both have to play BC twice, Winnipeg has to play Calgary and Edmonton gets one more crack at the Riders, it would seem to favour Winnipeg. Week 15 will be a crucial week for both teams.
So boiled down, what poison do you prefer?
Calgary, Calgary, BC, BC, Sask, Toronto, Hamilton, Montreal
Sask, Sask, BC, BC, Calgary, Toronto, Ottawa, Ottawa