First hand observation.
When our small team of communicators went to Punta Gorda after Charley we noticed a lot of towers still standing. Being hams our eye is natuarly drawn to towers.
I noticed many if the commercial towers were still standing but the antennas were missing and so where the dish horns.
Other towers seemd to be standing near the lower base but the top half was folded over and the guy wires were every where.
But for the most part is seemd that the commercial towers faired well. At least the ones we saw. Now this doesn't take into account the ones we didn't see and were in fact blown down.
But we did see standing towers that sustained minimal damage. The only damage seemed to be the antennas. There were a few hams that reported that there towers were still standing but there beam was blown to somewhere near BFE and there vertical was completly destroyed.
