I have always used Carolinas. I looked the Wescos over before I bought my last pair (probably had a half dozen or so pairs in the last 16 years of climbing) but the Wescos are just to high for me. I'm sure they are good boots but I do just fine in my carolinas. No problems with my feet hurting and I'm in trees all day about 3-4 days a week. I used the money I saved not buying the wescos on a new bull rope and flipline. On days that I don't have to spend all day in a tree I wear wally world Wolverines because they are not as hot. I used to even climb in hightop tennis shoes when I was a kid.
You will need a boot with a good heel for limb walking.