I've owned both Chippewa's and Danners, and the Danners are by-far my favorite. The Danner Sharptail Covey's are a pull on, and also available in different width's.
The also have a more rugged type sole instead of a standard flat boot-type sole which make crawling up muddy creek banks and such much easier.
I have the same danners and feel the same way. They discontinued the pull up snake boots for a while and I was disappointed when it happened. When I found out they brought them back I immediately ordered another pair to have as a back up. The problem is my original pair won't crap out on me so the new pair has been sitting in the box in my closet for 7 months. LOL And by the way, after almost 2 yrs of abuse the danners are still 100% proof. I dare you to find another snake boot that can say that.