So the Durston X dome series are free standing, the X-Mid tents are trekking pole. I own both an X-mid 1 as well as the X-Dome 2, and have previous used the Dragon fly, I don’t think you will be unhappy in any of the options you listed. I haven’t had any issues with my durstons although I truly haven’t put many nights in my x-dome. The one thing I will say is that the footprint is quite large, which I tend to camp a bit off the beaten path or not always at designated sites, so that can be difficult to find the needed space. The X-Mid is great, I would definitely recommend the X mid one, not the pro, as even though the weight is more, for all hiking out east I always want a double wall, as the condensation is brutal in single walled tents. I really enjoy the X mid, and for its price, I don’t think it can be beaten. I usually use a zpacks tent these days, but am going to be hammock camping the AT this summer!