I think the survivor is the best when it comes to durability vs. weight
Thanks to everyone for all the follow-up and input.
I haven't been tracking this thread/forum much lately, but I'm sure I'll be checking in with some questions soon.
Just an update: I ordered the HH Explorer Ultralight Asym Zip today, and I upgraded to the 30d Silnylon Hex Tarp. Looking forward to trying it out when the weather warms up.
I almost went for the $99 4-Season System that's currently on sale, but I decided to wait and do some more research. I'm thinking about the pros/cons of this system versus something like an UQ system at JRB.