OPI's RapiDry Top Coat!
Now this may not be big news to anybody else but this is the first time I've tried it. It's definitely the best top coat I have tried and it basically has the best aspects of the Sally Hansen and the Seche Vite. It makes your nails dry quickly, adds shine, and protects them. It's also very easy to work with and apply. It doesn't have the thick goopiness like Seche Vite nor did it create bubbles on my nails like Sally Hansen often did.
So, this is hopefully my final verdict on the matter. Which top coat is your favorite?