B & I got a Big Agnes Copper Spur UL3 - flippin amazing 3 season tent. 4lbs 12oz packed weight which includes fly/vestibule - HUGE amount of room for the weight. Tested it at home & field tested it during the crazy Mothers day weekend on Whitney. It shook a bit in the winds, but it held tight.
For a 4 season I like the Black Diamond Guidelight 4 person. With the extra vestibule it weighs in just under 7lbs. Lots of room, an area to "cook" in - not that you're supposed to do that but... Good tent held up in winds and snow. A bit of condensation if you don't open the very tops of the doors for venting. This usually isn't an issue as the vestibule shelters these areas completely.
We get the three person tents because we've found the two person tents to be a bit too tight for 2 & gear. You also have to be really good friends or at least ok with accidental spooning to use a 2 person w/ a friend.
I love a good tent =) - oh hell, I love good gear... =)
