I live about 1:15 south of EWR on the 737, and am glad I made the choice. I fly a lot of trips that look like they should be too senior for me, but end up falling through the cracks because of the show time or the end time. For now, I'm all about the schedule, and the 73 provides much quicker relative seniority than the 757 does. Remember, you can always bid up, but there's a seatlock that prevents you from bidding back down right away.