You may be happy (or not) to note that I've also momentarily worn each Borsalino lid that's come in (don't worry, I use tissue paper to keep the topper pristine), except for my newest all-time favorite--the spectacular Montecristi Vented Fedora. I'm saving the privilege of being the first head it touches for you. Hand woven in Ecuador, and then shipped to the Borsalino hatters in Italy, each Montecristi Vented Fedora has received several hundred hours of hand work by skilled artisans before reaching us, and in a limited edition of just 12 pieces. Call me if you're serious.
The panama hats don't stop with Borsalino and Brent Black, of course. Those London hat makers, Christys' by name, present panama hat perfection with the finely woven (and seemingly seamless) bleached Grade 20 panama straw safari hat they call The Elegante. The British collection also includes The Broad Brim Panama (a full 3 inches!), the sporty Natural men's safari hat and, of course, The Gambler, a classically shaped, Weatherall-treated panama summer hat that takes no chances with style.
I didn't stop there, either. (I rarely do.) I've tried on the Biltmore Milan braid dress porkpie hats; I've gone all debonair in that marvelous crocheted raffia sun hat, The Giovanni; my game was never better than in The Kangol Argyle Ivy Cap (and my socks matched too) and I definitely looked more authentic than usual in their classic spring Trilby. I can tell you from personal experience that conconut straw hats from Scala are as comfortable and supple as they look, and that The Bleeker Street (a Makins porkpie men's straw hat) is absolutely not made out of horsehair.
As for the rest, like the fedoras from Mr. Green in sisal, sewn braid, or panama, some with (and some without) bound edge, I'll leave the joys of discovery to you.