1. Karolina. Compentent, Cool, and well-liked by different overlords.
2. Jess. Honestly, whatever she's paid, it's not enough. Smart enough to get out at the right time.
3. Menken. Power hungry. Slick. Savvy enough to get the king a coke if he wants it.
4. Josh. Seems to have the upper hand over Logan and Kendall while they ask him for his support. Too bad he was only in one episode.
5. Rhea Jarell. We should have gotten the hint earlier that Logan wanted an outsider to be CEO. Plays both sides and wise enough to get out of a toxic situation.
6. Logan. Apparently he was to build and topple governments. And so he did with his own empire. Ambitious, ruthless, but not wise enough to raise serious people of his own.
7. Stewy. "I can promise you that I am spiritually and emotionally and ethically and morally behind whoever wins."
8. Marcia. The first to make a big power play after Logan's death and making vague death threats wherever she can. If she were around more during the show I"m sure she'd end up higher.
9. Gerri. Arguably stronger than Frank / Carl and also interim CEO of Waystar Royco. I'm dinging her for her nonsense with Roman.
10. Laird. Maybe I have a soft spot for lawyers but even when he's not in the room, he's relied by Logan, the Old Guard, and the kids to help get things done.
11. Frank / Karl : I'm cheating a bit since its a pair but they were really the MVPs during the transition period and held the boys' hands in their attempt to reverse viking.
12. Laurence Yee. CEO of Vaulter and board member of Waystar Royco. Too bad we didn't see more of him and should have wised up earlier to the Roys fuckery.
13. Matsson. Intimidating. Seemingly untouchable. Has the money to just sweep Waystar off of the Roys' feet. Fuckery with numbers and Ebba, though, can be his downfall in the end.
14. Brian. "I'm intellectually promiscuous but culturally conservative." Cool dude and I'd post him higher if he climbed the corporate ladder.
15. Sandy. Out for Logan's blood in the earlier seasons but turned into a vegetable.
16. Ebba. From the little we see of her, she's is high up in Matsson's organization that now larger with the acquisition. That said she puts up with Matsson's BS which might hurt her in the long-run.
17. Nan Pierce. She does get what she wants and is one of the few, if only people, who can drive away from a screaming Logan.
18. Tom Wambgans. From a humble background he made it to CEO of one of the largest companies in the world, even if is sucking up to kingmakers. Though silly, he has made the right calls and even put himself on the line to go to jail if that's what it takes. His messy marriage and outbursts with Greg keep him from a higher slot.
19. Ewan Roy. Another elder who can deliver one hell of a eulogy and acts as a conscience to Logan.
20. Eavis. From a Bernie Sanders-like politician that made it all the way to VP, at least lets see what the courts say. Only ding is his impulsive firing of a disrespectful Shiv. A more serious person could have handled that better.
21. Cyd. Tom's predecessor and partner at ATN. Definitely competent at the job but if she were more ruthless, she would have killed Tom in the cradle.
22. Nate. Man of the hour during the election tailgate and wise enough to know that turning into just another Logan would be disastrous for Ken.
23. Naomi Pierce. Seemingly enjoying a luxurious 0.001% life but unafraid to represent family business when it comes down to it.
24. Hugo Baker. A little silly - yes - and caught in a bad place laughing at Kerri but still an underrated player in the Roy Saga.
25. Caroline Collingwood. Despite being an ex of Logan's, she manages to be on good terms with him and the kids and can squeeze extra dollars from him when she can. Also, a cheeky little fuck.
26. Mark Ravenhead. Top $ draw at ATN, but can't even pass softball questions thrown at by his boss.
27. Shiv. The only child who has a career outside of Waystar Royco and almost was appointed Chief of Staff to a future VP candidate.
28. Greg. Yes, Greg the egg bumblefucks his way upwards and not necessarily taken seriously by anyone else...to their detriment. Out of all the characters, he has the biggest delta in status from s1 to s4 despite being a bumbling cartoon most of the time.
29. Willa. Temperamental? Yes. Bad playwright? Also yes. But she can stand her own to Marcia and swallows her pride for money and status in the end.
30. Kendal. Living was a win for Ken but that may be his only win in a sea of attempts at greatness.
31. Roman. The most serious thing he's done was realize he wasn't a serious person by the last episode.
32. Kerry. No serious person would be described as "Chuckles the Clown" by Karl.
33. Conner. Even though I am a Conhead, going through to VPs and blowing $100 mil to get 1% isn't a very serious thing to do (cough Bloomberg cough). But still, a candidate for the ambassadorship to Slovenia.
34. Peter. Nobody likes Lady Caroline's new husband.

Not mentioned because of lack of information: Rava, Comfry, Tabitha