Ooooooh, this is one of my favorite subjects!
For us ladies, I absolutely love Cerruti 1881. That stuff is heaven! So is Jean-Paul Gaultier (plus, the bottle is really cute--I always save all my perfume bottles because they make nice little knick-knacks). And for you, justamom, I would suggest Dalissime by Salvador Dali--it comes in an awesome bottle, too, especially if you happen to like art.
For men...oy, that's tough because I think a lot of men's fragrances smell the same! But I do like Le Male by Jean-Paul Gaultier, and also Joop! because that's my boyfriend's top pick and it smells really good on him.
Happy perfume shopping!