I initially bought these without sampling. I kept losing chapsticks and since this was a pack of four I figured I could keep one in every place (work desk, car, purse, home). But found out I like the red one the best. It slides on the smoothest and has the best flavor. Second up is the yellow one- but it's a little stiffer. I can only guess that the flavors change the consistency maybe? The Purple/pink one doesn't apply hardly at all.
Instead of using one per place, I ended up taking the red one everywhere until that one was out. Now I'm onto the yellow one. The more I use it the more slick it gets, but still not as smooth as the red one.