I have been searching for the right pad myself recently. While on the larger side (195 lb) but average height (5'-9") and a side sleeper, my first purchase was a women's Xlite. It weighs 11.5 oz ( not 11 oz as advertised) and is 66" long plus the taper does not start until farther down towards the hips. It also advertises a higher R value (3.9 vs 3.2). I also use a 1/8" evasote pad underneath ( trimmed to match the pad) for additional r value (4.65 combined) and puncture protection. This ccf pad serves triple duty as the back support for my Gossamer Gear Mariposa, and as a sit pad at rest stops. This has worked out so far, but I still find times that I wanted more width, even at some weight penalty.
I purchased an Xlite Large and the Exped UL7 MW pad, which was recently added to the UL7 lineup. The xlite is 78" long and 23" wide (not 25" as advertised). The Exped is 72" long and 25"wide ( not 26" as advertised). The Xlite weighs 17.5oz on my scale(not 16oz advertised) and the Exped is 20oz – 2.5oz more than the Xlite and and 7.5oz more than my women's xlite.
The extra 2" in width over the Xlite Large ( and 6" in width over the Women's Xlite, combined with the fact that the outermost vertical baffles on the Exped are slightly taller offers a significantly improved sleeping experience over either Xlite, although at a weight penalty that might be too much for some. However it is the first pad in its weight range that I can sleep on my side or my back and never experience the discomfort of limbs hanging over the edge.
I plan to alternate between the Exped and the women's Xlite depending on my willingness to carry the extra weight. The Xlite large is going back to the store.