I'm going to ask my kids which parent they loved more
Why do you want to know that?
Yes, I want to know who they love more. Assuming it's the one they spent more time with.
I do not think you should ask this question to your kids. It could make them uncomfortable having to choose one of their parents.
I do not think it's a bad idea, like how bad could it be if they say they liked the other one better? I don't care.
You have to think about the kids, what would they think about it? They might think differently than you. Trust me, they will be uncomfortable.