I wear a 36 in the attacks and the 36's in Axis fit me fine. No experience with the guide pant, but the axis were nice on the two 10 day cold weather hunts I've used them on so far.
Love the axis pants. mine are true to size. IMO they are a little busy with all the pockets and pockets inside the pockets. but it isn't a deal breaker
Love my Axis pants/jacket. Fit true to size, and definitely an upgrade on the guide line. Think if you contacted Kuiu they would tell you the same. Blocks a lot more wind and are warmer.
very similar fit to guide pants, maybe a bit tighter fit but very close. water resistant knees and ass is nice but I wish it was a tougher material like the sitka timberlines