I'll do the right side.
Dalinar Kholin -Against both Plate and Blade, a Thug has no chance.
Wayne - I dislike this category, but Wayne is at least funny, and Jak is kind of dumb. I also think that Wayne could actually show some devotion, but Jak is into himself too much.
Bleeder - She is using a spike made from a metal from a different Shard. She's not going to just run across that randomly.
Nazh - Well, he's a worldhopper. Lift steals pancakes.
Kelsier - I don't know much about Denth and whether he learned about other planets, but
Elend - Elend works on writing good speeches and Khriss has Nazh draw everything for her.
Spook - MeLaan . . . Spook . . .
Vasher - He is a worldhopper. I also read a WoB somewhere that Vasher saw shardblades and tried to create one with his knowledge of investiture and Nightblood was the result.
Taravangian - Marsh doesn't strike me as one who would do art. It seems a little more likely that Taravangian would have some artistic experience.
Marasi - Eshonai is a terrible artist. Nobody can even tell what her paintings are supposed to be. Sarene and Eshonai should have been matched up for artistry. Much harder to decide.
Kenton - Free vote. I like Kenton's style and dislike losers like Kabsal. Besides, sand mastery is way cool and Kabsal has no powers to compare.
Steris - Steris won't murder you.
Sazed - Hmmmm. A Shard or some Forger?
Vin - Once you get past her wall of mistrust, she is clearly a good friend. Silence - notably enough - doesn't really have any friends.
Edwarn Ladrian - He would be horrible as well, but he's not a sociopath like Tonk Fah.
The Lord Ruler - During his life span of a thousand years, he had some time to try everything and develop some skills.