I've had nightbreakers, Philips xtreme and am currently using the ring versions and was pleased with them all.
You might be thinking why so many? Well I drive mainly at night so I get through more bulbs than normal. They also don't seem to last like the basic ones but that could just be me. As they are brighter, buying two sets at the same time might be useful should one blow.
Well worth the money in my night drivers opinion.