If your poll had one more option: BOTH!
I could have voted accurately. I have owned 4 double wall tents and still have and use the two newest tents. I sold one of the earlier double wall tents to a friend and he likes it! I also own a solo single wall bombproof 4 season tent. With two solo and one 2 person tents I'm covered for whatever comes along. The double wall solo tent converts to a fitted tarp single wall shelter in about half a nano second.
Wayne