Hearthpwn

I disagree with many of your ratings, but no big deal... 90% of people on forums, whether they're rank 50 or rank 1 legend... end being wrong. Only a few are gifted to think out of the box in order to hit the most of the set.

That being said, I'd like to give a quick look on some of these (most interesting cards, no time to reposition and nit-picking everything):

Bulwark of Azzinoth, Scrap Golem, Scrapyard Colossus are not 1 star for me. Control, Taunt and Highlander Warriors lose Dr. Boom, Mad Genius, which sucks, but they can still be mid tier decks. Bomb Warrior is less passive, so has a greater chance to succeed, but he's not interested in these. If they nerf Rogue, Warriors will rise. Think of Bulwark as armor gain. Even if it gets hit with numerous pings, it's still similar to Shield Block, and why not include one more of those in our decks. And if it stops midrange stuff from Druid or Hunter, then this weapon is incredible. No reason to potentiate the worst possible scenarios. This weapon also can prevent otks. Warriors will lack pro-activity without Dr. Boom, no good neutral healing, too, so every bit of defense, healing and stall will be crucial. Golem can be buffed with Armagedillo. ...Colossus is a dumb big idiot, but can end being an obscure card in mana cheating, deathrattle decks, like Quest Warlock, Big Druid...

Germination - Idk.

Nethrandamus is one star for me. There's no such thing as Swarm Demon Hunter, and this one has problems like Jumbo Imp.

Enhanced Dreadlord - Maybe you're right or maybe one star more. Warmaul Challenger, Felfin Navigator and Overconfident Orc, as well.

Spell Mage stuff need more support later. Totem Shaman probably, too.

Three stars section: I would drop 30% of it, and promote 20%, 50% is fine  Specifically, I would rate much higher these: Overgrowth, Lady Liadrin, Dirty Tricks and Corsair Cache. The latter is the new much needed replacement for Town Crier, for pulling weapons and thinning decks. Warrior has several fine weapons.

Satyr Overseer, Ur'zul Horror - not good. Tempo DH cards in this section up, Big ok, Swarm down. Reliquary of Souls, meh rn. Paladin and Rogue cards up, Priest rather down... Shattered Rumbler slightly overrated. I'm not believer in Imprisoned Scrap Imp and Shadow Council.

Why are people amazed by Sightless Watcher? Otherwise, you nailed DH cards for this section. Incanter's Flow, Burrowing Scorpid, ok cards, but not for this tier; Imprisoned Gan'arg - bad, but more or less, this section is okay.

You listed all really good cards in the last section.