1. Is this really a horror film? If it is, it's less/the least scary one I've ever seen!

2. In my opinion, travelling by plane is less / the least dangerous than driving a car.

3. I don't like this dress. It's less/ the least suitable of all the dresses we've looked at.

4. This restaurant is really crowded. Why don't we find a place which is less / the least noisy?