I like the NXT Tech Wax (liquid polymer)... goe son and comes off easy, but as everyone said before me, it doesn't last a super long time. 4-6 weeks and its time for another application. Luckily, I like detailing my car, and also, it's incredibly thrifty because you only need a VERY small amount to cover the car. I've used the same bottle for about 2 full years now and thats doing both of my cars every 6 weeks on average (not as much i the winter, though, but a nice double-coat in late fall).