As I've said previously, Spy-family cards are the worst for playtesting (and the +1 Action Spies would all be different if I made them today), and in general a card didn't have much of a chance of being published if I hated it, so I like most of the hated cards and even adore some of them.
These days vs. bots, it's sad to see Rebuild on the table because it's a reminder that I blew it on Rebuild, that serious players hate Rebuild. And that game vs. the bot will not be especially fun either. IRL it used to be no fun to play Pirate Ship games, because there would be someone who thought it was broken, and I'd have to beat them up with whatever else, only you know, the card wasn't supposed to never be playable, maybe the board would actually be good for them and they'd win and then say yeah, so broken, wow you sure blew it on Pirate Ship. So they were these tense games where in the end I beat them up because Pirate Ship is in fact bad.
I like the swingy cards, I like Swindler and Tournament a lot. I love Black Market. I don't adore Possession but it doesn't bother me either, I've gotten some fun out of it. Goons and Masquerade and King's Court are good times. I like Jack. I love Peddler, my favorite card in Prosperity. I like Governor fine, Jester is great. Philosopher's Stone has never been an issue for me in person, though it was a mistake to have it in Alchemy, since lots of people find it to be too slow (and that's an issue with the set overall). I love Smugglers. I like Remake and the Knights, love Procession, don't really mind Familiar. I like Cultist, I find Soothsayer really unobjectionable; I don't mind Mountebank so much but it would be nice if it was less automatic. Wishing Well and Mystic are fun.
I am sympathetic towards people who don't like Torturer and Minion; in later years I sometimes ended up having a +3 Cards attack because you need to do something simple to go with the attack part, but it's better when good attacks don't also draw your deck. In person I don't look at my hand in Minion games until my turn, that cut out a lot of the uh pain. I like the actual decks fine, I like doing cute things with Minion. I am sympathetic on the IGG front; I would like to see how IGG plays as a Silver for $6 that gives out Curses when you gain it. It doesn't sink games for me and sometimes does tricks, but sometimes you are just spending the game buying IGGs and VP, ho hum.
I agree that Council Room is annoying vs. the bots, especially in the adventures, where you see it a lot and are sometimes at a disadvantage. Maybe it just buys a Council Room and beats you. If it had to be clever it wouldn't have a chance. The interface for Urchin does make it annoying; I'm not sure what there is to do there.