Catlike fit a very specific shaped head, quite narrow/oval, they do look cool however. But there are barely any, if any, LBSs that carry them in store to try (I ordered one and sent it back as it was very uncomfortable)
Specialized tend to meet the most exacting safety standards (Snell)
Helmet buying is a nightmare, I went through lots before settling on the Uvex Boss Race - sits low, good for rounder heads. The Kask was quite comfy but I couldn't justify £130, especially as a replacement for a 3 month old helmet that got damaged in an accident