Based on the quality of her 'body of work' performances at nationals and worlds and olympics, Kwan is an alltime great (and her not winning oly gold makes me think less of the olympics than of her).
I completely agree! Kwan's achievements will keep her among the all-time greats for decades to come. Further than that I can't go: I can't compare her to anyone else, because skating has such individuality (unlike a sport like track or skiing) that you can't really rank skaters in a meaningful way--that is, you can't rank them without disregarding some really important elements of their skating. Example: Janet Lynn never won a world or Olympic gold, and yet she's at or near the top of many people's "now and forever best" lists—frequently way higher up than two-time OGM winner Katarina Witt. You can choose your favorites, but you can't really, truly make a ranking that everyone can agree to.
Princess9, from everything I hear about Kim's impact in Korea, there is nothing, or at least nothing within the skating world, to compare it to. I know that skate fans in Japan are quite avid, but they now have a bunch of skaters from the present and the immediate past to admire, both ladies and men. Korea has just one world-class skater, ever--and she's one of the greatest skaters ever. As someone on another thread recently pointed out, she models. She even sings. (And pretty well, too--there are examples on YouTube.) She is the most famous person in all of Korea, and keep in mind that the current Secretary-General of the United Nations is from Korea. She's probably as unprecedented in terms of fame as J.K. Rowling is (the author of the Harry Potter books, in case you don't know any children).
As for comparing her to Kwan, I certainly couldn't make a comparison. In strictly objective terms, each has something the other lacks. For sure Kim is one of the best jumpers ever, in terms of speed and the size of her jumps. Now that we can measure point scores, she's the record breaker among women. And, of course, she has the OGM. On the other hand, Kwan has a really unusual longevity and consistency. The fact that she was able to start her international career so young is part of it. She was fourth in the world at the age of 14, first at age 15, and on the podium until her early twenties. Kim didn't start racking up senior world medals that early and doesn't look to be interested in staying around that long. If she does, she's sure to win more world golds.
Any preference for one or the other enters into the realm of the subjective. I happen to prefer Kwan, but I also love and admire Kim, as well as Mao Asada. Subsequent posts will argue eloquently and fervently for one over the other. It's going to be fun to listen! But there's never going to be a convincing final verdict.