There have been a lot of threads in the style of this one: favourite boss, favourite zone, favourite boss quote, and so on.
But in this thread, it's all about what you have on top of your head.
Personally, i think the cowboy shaped hats (in all colours) like the one my character is wearing at the moment are the best looking hats. They are not that epic with ornaments everywhere, but they just look cool. They make me think of Portuguese fishermen, or Van Helsing (if you don't know that movie, it's a guy that chases vampires and stuff).