Kate, Eric, Cho are good contenders, Kate a little less so since her playing is rather "individualistic." Hamelin is not the most "marketable" contestant, (when it comes to stage presence).but he could probably win. Shishkin could too, but they are probably looking for deeper players.
Who will not win the Chopin competition? Probably Aimi (sorry Pencilart)... Her playing is unfortunately somewhat sloppy (only somewhat, but it makes it hard to enjoy some pieces, e.g. her Barcarolle and op. 53. She did pull herself together in the op. 45 though.) It's also not very consistent; perhaps if she plays everything in the 3rd round as refined and consistently as her op. 45, she could win it.
Not Tony because he's waaaay too young (he's a high school senior!) and again prolly not deep enough.
Not Carroccia- inconsistent...
Who else is really worth mentioning? tbh they're all "nice" players, but only a few play with exceptional level of detail, spiritual depth; only a handful play with "personal touches" while still connecting to the audience (e.g. Kate)...