Depends on what you need in a helmet. The Snell standard has some good points, especially for racers. Banging your head against a a rollcage numerous times while flipping a race car endlessly needs a tough shell. Same can go for bouncing along a curb or guardrail. I was sold on the ECE standard myself after first reading the Motorcyclist article, but the Snell rebuttal made some very good points. In the end, what protects you best depends to some extent on how you hit. Each standard has its strong points, from that aspect. Most important thing is correct helmet fit! Most people wear too large a helmet, which renders all test data meaningless anyway. Think of it this way...skydiving never killed anyone, it's the sudden, violent collision with the ground that does it every time. You do not want to have a collision inside your helmet! Your brain sloshes around enough on its own. Don't buy a helmet for comfort, buy it for fit...and greatest protection.
-Scotty