I use an older (Yellow) BD Lighthouse tent. It's rated at 2P, but that would be way cozy for me. It's freestanding with internal poles. packs up dang small, and comes in around 3.7 lbs. One whole wall can zip down to netting and I could fit me and all my gear in there no problem. It's a single wall, and supposedly does fine in storms although I have not tested this yet. It is taught and did great in high constant wind.
Freestanding (But you should stake it and guy it out in the wind)
Easy to ventilate.
Can zip it tight in a storm and get some warmth too and no drafts!!
Big for one person and all your gear, small for two but would work
Packs down small.
Strong in the wind.
Can be set up quick from the inside if it hits the fan quickly
Truly is a 3+ season tent. I would use it in the snow.
Single wall so there will be some condensation.
Not superlight by today's standards
Said that it will mist in high humidity prolonged storms (condensation getting knocked off the roof)
Discontinued, only make Hilight model which has a smaller length, I am 6'2"
here's their current offering on the hilight:http://www.backpacker.com/january-2011- ... gear/15118
I have thought long and hard about other types of tents but I agree that there is probably no ultimate setup. In warm, dryish conditions I would love to have a 2 lb tent, but then maybe I could just get a bug bivy and a tarp for a pound or so. I have looked at the MSR Carbon Reflex and some of the Big agnes offerings and they look terrific and I would love to pick one of those up, but I think I could kick a pound out of my pack in other ways for a lot less money, like a lighter pack and one of the newer air mattresses. Or just stop bringing a 6 pack of pounders on weekend trips.......