I'm know wool is better than cotton. As I recall, both absorb water, the difference being that when wet cotton is next to the body it feels cold while wet wool feels warm.
I'm pretty sure that wool is better than polyester fleece, but how much better? Whereas wool tends to absorb water, I believe that polyester tends to transmit or move water. So back to my question, how much better than fleece is wool?
My original reason for posting this is because fleece is generally less expensive and easier to care for. However, since I just found some decent wool sweaters at T.J. Max for $11 each, the question is more academic.