Wow, all three of those kingdoms look pretty awesome. Maybe I underestimated the new cards, although the Empires cards (and card-shaped things) also contribute a lot to it, I'd say.
The first board has a rather weak engine, but it's still playable due to the large amount of Alt-VP with Orchard, Obelisk and Fairgrounds. I guess you want 3 of all the non-terminal Actions (maybe more Transmogrifies) and 1 of all the terminals before greening (well, you're kinda already greening in a sense). Artisan is a rock star, of course. BM could never keep up. Interesting dilemma: is keeping the Shelters for Fairgrounds worth it? Probably not, right? (Lurker can actually gain you the Necropolis back from the trash, lol.)
The second one is probably my favorite. My knee-jerk reaction would be, go for the engine, it's definitely worth it. Heralds will start cascading quickly once you get rid of the starting Estates with Butcher - although maybe not as quickly as usual due to the weak Copper trashing. Tournament gets you Princess, which is a better first pick than Followers here imo, even with Courtier on the board. But then there are a couple of strong and interesting BM options. Courtier/Legionary BM could be very strong, maybe with support from one Bandit, although it would be sad for Bandit and Legionary to collide. In both cases, getting those 3 Coppers late-game sounds doable and worth it. But with the strong Attacks flying around, I'd probably still go Herald engine.
The third one is not as cool as the other two. Inheritance + Mill + Patrol looks ridiculous until you realize that Diplomat is the only splitter. Good luck with that. Dare I say it - Scout may have been better for the engine here since it's non-terminal. Painful. Patrol-BM still looks okay though, maybe with Trading Post support. If you get a lucky early 7, Inheritance instead of Trading Post does the trick, but ironically it weakens Patrol since it will now draw those Estate-Somethings dead.