It sounds like you are all making smart choices with gear.
When I first starting riding at the Shed, I just was just ripping it up on a shitty $300 Iron Horse and a street helmet. Once I decided to start hitting drops, jumps and (more) techy DH, there was no question about getting a FF.
A Giro Remedy fit me the best, so that's what I went with. I tried on a Troy Lee, but they are too expensive for my tastes and I'm not too keen on their looks either. Matte Black, that's all I want. The Giro Remedy that I have is very solid and battle tested. I've landed directly on head twice (teeter totter skinny and rolling a drop [HTML_REMOVED]don't do that), skidded out on my face, crashed into trees and grazed rocks. It has protected me very well every time. Like it has been said, it's not really if, but when. Protect your noggin.
As for other helmets, I tried on a Specialized Deviant. Yes, they are lighter and provide more ventilation, but they also have less padding and less structure in general. Considering the crashes that I've been in, I'm happy that I've not crash tested one. However, it may be an excellent helmet. I'd be curious to hear from some people who have unfortunately tested them out.