You mainly want one that you will wear. I've never been much of a helmet person either till I fell off last fall. I wear one all the time now.
I have a Troxel I think its a cheyenne. I wanted one that was cool enough in the summer since I knew if it was hot I wouldn't wear it. This on fit the bill, with a nice sweat band in the front of the removable liner (it came with an extra liner) and lots of vent holes. I think it was around $60 I was going for easy to clean but with a little western flair, I guess the leather band in the front is what makes it western
Heres me, see I have it westernized more with a wild turkey feather