Overall for comfort, for a couple of guys 5'8'' and 5'9'', around 165-170, would you recommend the regular fit or the wide, .
one more recommendation regarding the fabrics. Some of the fabrics are pretty close to waterproof,but negative thing is if you select this kind of fabric for both sides of the quilt it will be difficult to put into stuff sack because it also almost "air-proof". So, you will have hard time to stuff it back after use. My quilt is last year model and for top I selected same fabric what TiGoat uses in their bivies (=very water/wind resistant) and for inside very soft breathable fabrick. My quilt is very easy to stuff back to sack. For sizing I would follow what Tim mention in his website.
As I mentioned earlier I have an EE Epiphany quilt made with cuben fiber (both sides) and the quilt is waterproof and vapor proof. It has a sack pump which is a cuben fiber tube that allows air to be pumped into the quilt and also removed. I've had no problems stuffing the quilt into a stuff sack. It is no different than any other quilt. All I do is stuff the quilt into the stuff sack starting with the end opposite the sack pump. As the quilt is stuffed the air is pushed out the sack pump. The last thing pushed into the stuff sack is the sack pump.