I'm not sure this will be helpful for you because you are looking for warmer, but I'll offer it...
I have used the guide pants for many years during moose hunts up here, and they have been great but sometimes too hot for me. Last year I purchased the Talus pants to test, and I essentially lived in those for two weeks on my September remote drop hunt, never wearing the guide pants I had with me. The knee pads were also a nice addition.
This year for my two week remote drop hunt during the last two-weeks of September I didn't bring my guide pants at all. Instead, I again brought my Talus pants and the new Axis pants to test out. I never got a chance to test the Axis because the Talus was all that I wore. It was below freezing at times and the wind was really blowing for many of those days...and when it was blowing hard and cold, I simply put on my rain pants as an additional layer.
I will say, as a stand alone guide/axis comparative, that the guide jacket is warmer than the axis jacket for me. However, I do like the higher collar on the Axis and layering under it seems easier.