I'm a lowly silver, qualifying yearly strictly on segments as I usually acquire about 32 flights from DSM-ORD and DSM-DEN. As a silver, everyone knows that my upgrade rate is about 1 for every 30 flights I take. Not a huge deal since these are all short flights and as long as I'm not in a CRJ 200, I can make it work.

Needing to fly DSM-SAN in early November and have a choice of 2 of my 4 segments being on a 757 or 737-900. I've flown pretty much nothing but UA for the past several years and haven't been on any flavor of a 737 in a LONG time. If you were a silver and not counting on any kind of an upgrade, which equipment would you choose for comfort?

BTW--I've flown into SAN a couple of times for personal trips and love that airport. Busiest single-runway airport in the country!

Thanks for any information you can provide!