I'm with everyone else, Revlon is pretty good if you're not looking to spend a fortune on nail polish... I just use their regular shades, two/three thin coats, and when you do the first coat it really helps to just go along the tip of your fingernail (like almost underneath, iykwim), it 'seals' it to your nail and makes it less prone to chipping (but make sure you do it with the first coat so you can smooth it out, if you do it on your last coat you end up with a big chunk of it along the tip of your nail!).

I never use top coats unless I'm doing french tips, just to 'bond' the two together so the tip doesn't chip off. I'm too lazy heheh


OPI is also really good, they have some pretty unreal colours available too. I've also heard good things about Bloom nail polishes. HTH