Question: What do you guys consider to be the most painful spots for a tattoo?

For reference, I have 27 tattoos, pretty much all scattered around my body except for anywhere on my back, neck, and face. My most painful tattoos are 100% the ones I got on my thighs. 10/10 pain for me, almost couldn’t finish the sessions. My least painful tattoos are on my stomach and ribs. Hands were in the middle and arms, it depended where exactly I got it done. I’ve always heard really bad things about the stomach and how it’s rated one of the worst spots which I find surprising because if anything, it tickled so that made it uncomfortable. What do you guys find the most painful? I’m thinking of starting to get work done on my back in the next couple months!