My thoughts (don't remember how I ranked them exactly, but...) are:
Mandarin = ranked too highly. From my experience the card is worse than HT for money, as discarding 2 cards is usually more effective than top decking from a non enlarged hand.
Outpost = ranked too highly. It's just weak unless you have some way of exploiting it (ie. a schemed SP , alchemist , minion , etc.) but even then, Outpost itself isn't strong... it's the rest of the deck that is strong.
Tribute = ranked too highly. Maybe I'm just slanted by my memories of getting exactly what I didn't want, and having my opponent flip over the same 2 cards... but I really am not a fan.
Counting House = ranked too lowly. Yes, it's a bad card... but not the worst card. I find it useful in a lot more situations than most of the cards here. The combos of Golem / Chancellor / Coppersmith /etc. are nice and all, but I like it any time you end up with more than 7 coppers. What cards cause this? Cache, Mountebank, Ambassador (potentially), Gardens, Goons, Apothecary + Discard.
Saboteur = ranked too lowly. Again, it's a horrible card. But just the threat of it makes it not the second worst card out of the $5s. I mean, have you ever adjusted your strategy because your opponent bought, say a Royal Seal? Obviously not. But with Saboteur, you really need to have SOME time of a counter (either silver flood, putting cards on mats, etc.) if they can play it a lot.
But I understand the placement of all these cards.