Personally, I'd go with Skiko, as that's a straightforwards Canvas implementation.
My experience with KorGE is that it's really nice, performant and so on. I built some mini-projects with it just to test it's capabilities on Android + Desktop, but I really had a lot of trouble setting it up and making it properly work on iOS for some reason 😕 That's my only argument against it. E.g. just by the docs:
https://docs.korge.org/targets/ios/ the "run in simulator" simply does not work out-of-the-box on my machine, even when using their template "Hello KorGE" project. (Also note that I was working on v5.4.0, so maybe something changed on v6.0.0)