I haven't used the Attacks but I here lots and lots of good about them - I wouldn't be without my Timberline pants though - LONG before we seemed to begin "needing" all of these specialized pants I wore wool pants and not surplus but Filson and Woolrich and I was always comfortable and aside from having to pluck some burrs now and then wool worked - My son had a pair of Kanabs and absolutely loves them as well
I have for casul/outdoor wear prana zion and eddie buarer guide. I have for hunting kuiu attack, sitka acent and previously had microtex. I can say I am definately looking forward to the attacks. They fit well (on my body), don't seem to swoosh, have a decent thickness for Oct hunting and hip vents to dump heat. They might be on the warmer side in Sept.
The eddie baurer guide pants I also like a lot for regular camping, they do have a tad of swoosh to them though (zions have a bit more).
If I was only going to bring a single pair of "any condition" pants, it would be my Chugach NX. Otherwise, if this does not include rain gear, for now, it would be the Attacks. That said, I got a pair of the Alpines for Xmas this last year and haven't used them yet, but they may take the place of the Attacks.
I think it would be very situational on where you are hunting, but I have found that I wear my Sitka mountain pants more than any other pants I own. The knee pads are a lifesaver when I have to crawl to a buck I have spotted. They are also very handy during an archery elk hunt, when I have a bull coming in many times I am on my knees waiting for the shot. The waistband, and belt design are some of the best in the industry as well.
I really like my timberlines but i run way too warm too use them above 50 degrees. So for me I'd have to say my eb guides, they breathe enough for warm weather use and can put on base layers for cold weather.
I like the Kanabs during warmer periods of the year but the Sitka mtn pants would probably be my choice if I could only pick one. They are very comfortable and durable. The knee pads spoil you quickly and the Sitka keeps me drier than the Kanabs.
A five year old pair of Sitka Timberline's have worked great for 80 degree September elk to below zero Whitetail, very with baselayer of course. That said, Cabelas has redesigned Microtex and the fit is far better that the past generations, will be wearing them this year and while there is little stretch they are great pants!