Zions are good if they fit you. I really wanted to like them, but mine were just okay. Little snug in thigh and loose below the knee, which created more of a woosh noise when hiking. Zions don't have vents, which I really like. All of these pants runs little warm in my opinion, because they don't breath. So vents are important to me.. Attacks are great, very quiet relative to others, but do run a little warm. Better for Oct and more so Nov. I like the Tiburons a lot for Sept or earlier. Very light weight, have zip vents and all the other attributes. I don't know which model it is, but there is one with similar fabric as Tuburons but they don't have vents. There's one also similar to Attacks, but they have built in knee pads. Don't recall the model name.