I voted Crested gecko. I have kept both, and currently am breeding cresties.

I love them to pieces, they are so sweet. They really are very easy to care for.
The room temps they require are great! You don't have to buy thermostats, and heating mats.

They also eat the crested gecko diet! Which smells like banana bread lol.
So you aren't required to have crickets.

They can live in smaller enclosures. 20 gallons preferably for an adult. Although I do have a couple that stress in anything over a ten gallon.