You're built like me. You'll probably be better off on the larger frame. For perspective, I'm 6'0 but tend to ride a larger bike than my 6'3" friend with short legs, because I have a longer inseam and more reach, and rather reach out (forward) than down, like on a smaller frame. If I go with a smaller frame, I wind up having a mile of seatpost showing and the seat up a ways over the bar. On a commuter, I like the bars and seatpost just about level, with perhaps a 2-3" drop maximum. The stem on that bike seems long-ish, so you can always swap for shorter if you're too stretched out.