I imagine you've gotten something by now, but thought I'd add to this thread in case anyone else comes across it.
I have a Sea to Summit Comfort Plus Insulated (Large tapered, red), but it's the non-self-insulating, which must pack down smaller.
I also have a Comfort Light Insulated (green), both the current and old versions. The Plus is 10 oz heavier, but noticably more comfortable. While the Light packs down a bit smaller, it isn't enough to matter much in most packs. The weight difference is a much bigger concern to me.
The current models' stuff sacks with the integrated pump takes up more room too. If you can find Sea to Summit's older green concertina-style pump, get one; it's the best in the business.
Most of my friends have either Cabela's Instinct pads (which I borrowed many times before buying mine), or Therm-a-rest self inflatable. I feel the Sea to Summit pads are superior, both in comfort and size to weight.