I’m trying to decide between Crested Gecko and Leopard Gecko

I am a very big fan of animals. I am a long time avid fish keeper with multiple tanks for years so I do understand how to maintain tanks and animals. I am so stuck on which to get between these two.

I really need someone to give me a convincing argument for one or the other and why. Not just “pick your favorite or where your heart is” because I am truly stuck between the two.

Things that don’t matter: I plan on buying the recommended max size tank for both which in my search is a 18x18x24 for a crested and a 40 Gal for a Leopard. I have a large table for the tank so space is not a problem. Whatever the size of the tank needed is I will get. Need the other questions answered.

I have owned many fish for years so I am responsible for animals and will keep up.

Things that do matter 1. How expensive/hard is the upkeep on the feeding/diet?(how often do I need to feed?) 2. What is the handling like for both? 3. Which is quieter? 4. Which is easier to maintain the tank and clean?(I’ve heard of bioactive, how hard is that to do?) 5. When maintaining the heat what is important for each and how to do it? 6. What do I need to buy besides the tank for each such as decor and such to assure best life(costs and item specifics)? 7. Do I need real plants or does it not matter?(even if bioactive?) 8. Most important is what temperature do I need to keep the room if say the room they are in can reach 60 often? How do I maintain this with heaters and know when to turn off the heaters or is there an auto turn off gadget? 9. Where can I get the best budget options for the whole tank?(I have a breeder for the geckos so not that) 10. How do you maintain the crickets and what’s the cost on those a week? 11. How do I go about the humidity aspects of geckos?

I’d appreciate the help in as much detail and any additional info I could need and for future question seekers like this.