I noticed in the Commuting Survey thread (BTW, great idea, undisputed83...I feel like I know this ragtag community a little better now!) that among those who expressed a preference between the ride in vs. ride home and gave a reason why they had that preference, a number of you mentioned that a hill was what made one direction less favourable than the other.
I actually don't mind the hills on my commute. Edmonton is quite a flat city, but we have a nice deep valley that bisects it, plus a bunch of ravines that radiate from the valley. I don't have to go through the valley, but I choose to. I work really hard on those climbs out of the valley, and I strongly believe that those climbs have made me a much stronger and faster cyclist overall.
Maybe my climbs are smaller than yours, and maybe some of you don't put as much emphasis on the fitness/training aspect of commuting as I do, and that's totally fine. But since I'm myopic and can't imagine anyone having different ideas than me, what is it about hills that you don't like, seeing as they provide such a good opportunity to strengthen your cycling muscles? Anyone else here like hills and/or deliberately choose a hilly commute?