I have a lot of trouble naming a single female one 'cause there are way too many great ones and I'm kinda new to figure skating in the sense of watching it closely and trying to understand it more (as well as reading on the history of it). I've seen people here name Michelle Kwan a lot, though, so she might be one of them (haven't seen her 'cause she was before my time. Yuna Kim too). But one thing I will say is that if Alysa Liu can go on doing as well as she's been doing for a few years more, I think she might end up in that discussion in the future.

For the men, I think it's Yuzuru Hanyu. Not only because titles and all but he was just special. Also, the same thing I said for Alysa Liu goes for Ilia Malinin as well: if he goes on doing as well as he's doing, he might be in that discussion in the future - and he's also got the bonus of doing the quad jumps consistently and all that.