I went through a similar dilemma not long ago. I ended up going leopard gecko and I'm so glad I did.

I had a crestie for a while but he was too jumpy and I was constantly worried about him dropping his tail (they don't grow back).

I chose not to get a bearded dragon just because one would require a bigger set up, more food and more expensive equipment.

So I went leo. I have no regrets. Sprocket is so easy going plus her set up is a breeze. She's in a 24x24x12 with her friend Doozer who is the devil lol. I'm working on taming her down. But she is the exception rather than the rule.

Sprocket is so simple and she's adorable. The set up doesn't require lighting just a heating pad or radiant heat panel. They both eat dubias and meal worms.

Plus leos come in way more color varieties than bearded dragons or crested geckos.

Here some pictures of Sprocket