First of all I would suggest you call Taylor at Davis. He is the one that has worked with the Go Tent the most and could answer that question the best. I have the traditional pole system because when I bought mine they did not offer the angle kit setup for the Go Tent. Here are my thoughts:
With regard to high winds the following factors will in my opinion make more difference than which pole system you choose:
- The 36 inch side wall will be your friend in high winds. The taller the side wall the more wind it catches. The lower sidewall is better in the wind in my opinion.
- The most important thing is to have your tent setup at the correct angle so the wind is not broadsiding your tent. This can be tricky since sometimes the direction of the wind can change during the night.
- If you are using a tarp on the roof, I would NOT have too long of an overhang. Extra tarp overhanging can catch wind.
- A front awning sure is nice, but it can catch wind and cause you grief. I do not use a front awning on mine.
With regard to the snow load I would think the internal frame "might" be stronger (but I would confirm that with Taylor at Davis). If you wanted to go crazy with it you could even order some extra angles and add an additional rafter. I did this with my Davis 12x14. I am sure that it is stronger and more sturdy, but to be honest I probably will never use it in those conditions. I am a sissy about stuff like that. Since I usually hunt by myself I fear that I will get snowed in and not be able to get my 4wd Tacoma out. I know of guys that have got stuck and had to hike out and leave everything behind. If the forecast is for heavy snow, I camp at a lower elevation.
One last thought: If you are wanting a sewn in floor, you would need to confirm with Davis if the internal frame kit will work with a sewn in floor. As I recall, their larger tents if you want a sewn in floor they strongly recommend a traditional pole setup.
Just my thoughts.