Grandmaster Hlaalu is my number one for feeling like the most balanced deck overall. It synergizes well with most decks without feeling like a must pick, it has some cards that are high tier, but nothing that makes the game feel like it's already over. It's patron is risk and reward, so even though it's good you're not necessarily better off spamming it. To make most use of the deck requires thought, and it doesn't drag games out too much either.

Druid King is number 2 because I like the strategic decks and DK feels strategic. It feels very adaptable and synergistic with other decks while still holding it's own. I do think it needs some small nerfs though and I think getting benefits from opponent's moves isn't cool. So, I can't give it number one even though I must admit I have slightly more fun with this deck than my number one.

Psijic Loremaster Celarus is number 3 for similar reasons. It adds a depth of strategy and tactics to the game and doesn't feel too overpowered.

Ansei is number 4 because it has some pretty interesting strats you can pull with the cards that let you move things from your CD pile. However, sometimes it's power generation can lead to some games that feel more RNG based than the above 3. Still, of the decks with big power cards this one feels the most in depth.

Red Eagle is number 5 because it's interesting how so much of it is contract cards, and how valuable they really are opens itself up to late game rather than early imo. In the hands of an experienced player though, it can exacerbate snowballs.

Duke of Crows is number 6 because it's a very swingy deck that seems to cause a lot of people to dislike the game. While I don't dislike this deck as much as many do (and have a pretty good winrate against it), it definitely is more RNG based than any of the decks above it imo.

Saint Pelin, the best of my worst 3 because the taunts are interesting and are one of the best anti-snowball mechs in the game. Unfortunately, there are also some cards in this deck that allow for power rushing RNG, which to me is tot at it's least skill based.

Rahjiin is one of the decks that exacerbates the imbalanced early game the most out of any other deck, imo. Because not only does having certain very powerful cards in this deck set your own deck up incredibly, almost everything about this deck is also designed to help cement that lead by limiting the opponent's ability to express their own skill. I also think the way Bewilderment cards are implemented are poor game design.

Sorcerer-King Orgnum is the easiest to use power rush deck and the one that most unfairly exacerbates early game lead. It even allowed the absolutely terrible early ai to win matches off skilled opponents through pure RNG. When I think of all the paint points of ToT (some toxic gameplay elements, early game decides game too much, heavy RNG based, power rush strats are too easy to pull off, etc) this deck is pretty much an offender in all the categories.