You should swap Princess and Followers from that list.
Why do you think princess is better than follower
If you're the only one with access to +buy, you're very likely to win. If you're the only one with access to cost reduction in a kingdom with plenty of +buy available, you're very likely to win. At least one of those statements is almost always true when you get Princess, which is to say that you're very likely to win if you get Princess.
Followers is not that game-deciding. It's just a weaker version of Margrave that hands out junk cards to both players.
I know, but you draw two cards which can be very good and then you get that estate which gets you a point ( which would be better if you had inheritance ) then they get a curse which gets a junk card in their hand and loses them a victory point then they have to discard down to three which can be very painful, what else could you ask for
You could ask for +buy or cost reduction.
True but follower is really good with cards that favor estates like pasture, baron and inheritance
Princess doesn't have very many combos that I can think of right off the top of my head
Princess combos:
Workshop, Festival, Market, Artisan, Pawn, Baron, Bridge, Ironworks, Coutrier...
These are just from Base and Intrigue.