That is my question. I remember seeing this somewhere on this forum a long time ago, but I couldn't find any information about it.
For those who can do both... which is harder? You'd assume maltese, but you may have noticed that many more gymnasts do maltese on rings rather than planche.
I'm just asking for floor skills because seeing Yibing Chen do a maltese on the floor got me questioning... and people who do planches with their bodies arched towards the ground have it easier than those with a straight body.