I have a leopard gecko, I've heard that crested gecko's are pleasant as well. I believe crested geckos are a bit easier to care for, but once you have all the supplies needed, they're both easy to take care of.
I've never had leopard Geckos but we have 3 crested geckos in our house - 2 are mine - and I love them. They're so cute and easy to look after. I hope you enjoy whatever you end up getting. Be sure to post pictures when you can.