I also find that the Eno snugs up to me and seems tighter (shoulder squeeze), where as the GT UL seems to be baggy with flappy sides, and I find this much more comfortable. I hope I didn't confuse anyone. My description may be strange.
I have them all, but I prefer my Trek Light Hammocks. I suspect that's for two reasons:
1. Trek Light is a "local" company for me and I try to do as much business locally as I can without sacrificing too much.
2. I've met the owner (Seth) face to face. Given a choice between giving someone I've met money and giving it to an anonymous company, I'll always choose the former.
Quality and value wise, these three hammocks differ very little. I'm happy and snoring in any of them.