After seeing most of the different models in a store. I'd lean to the Exped Syn or Downmat 7cm or 9cm if you're going to try a mostly air pad. Check out Exped website for internal pump video.

I've been on trips were people had leaks with the Big Agnes pads. Big Agnes replaced them OK, but that doesn't help when you're on your trip.

Thermarest has a 40th anniversary model pro-light that's 2" thick. They cut the mummy shape down some from the 1.5" pro-light plus to save weight. It packs smaller than the Expeds if bulk is an issue. Smaller footprint though than the Expeds, but you have the same old foam core left to sleep on if it gets a leak during a trip.

Lots of winners to choose from.