If you are looking for a great gloss that doesn't wipe away or slide off the lips easily then Bella Il Fiore's Shine On is just about perfect. It doesn't need to be reapplied as often as thinner brands but might be a bit heavy on the lips for some users. The color is rich but sheer and has a lovely shimmery gloss finish. It can be layered under a shinier gloss for dramatic impact.
The most helpful critical review
I love lip gloss and realize that it's usually a sticky, imperfect product. This, however, has almost zero redeeming qualities and costs just a little too much for me to consider it an acceptable loss.