I didn't have a horse in this race!
3 of these were actually my top picks from the contest.
Here are my favourites from the prizes. There were others that I liked too, but these few stood out to me. There were also some that I liked before that I am less sure about now.
Wizard
Types: Action – Prize
Cost: $0*
If this is the first Action card you played this turn, +3 Cards and +1 Action. Otherwise, +1 Card and +3 Actions.
Still don't like the card name. Still like the mechanic.
One interesting thing I just realized is that this card can be a really nice pick when your Tournament gets blocked. Wizard gets top decked and you fail to draw it, making it more likely that you can play it as your first action on the next turn. That's really cool.
Shield of Virtue
Types: Action – Reaction – Prize
Cost: $0*
+1 Card. +1 Action. Look through your discard pile. You may trash a card from your hand or your discard pile.
When another player plays an Attack card, you may reveal this from your hand. If you do, you are unaffected by that Attack.
It's not crazy stand out, but I like that it can be a good pick after someone else gets Followers. It's nice that it can both moat against Followers AND clean up Curses after the fact is nice.
Hmm... I actually wonder if even more could be added onto it. Like, in addition to Moating the attack, you can choose to discard the shield from your hand to gain a Silver in hand. Or maybe even do the classic broken fan card of an attacking reaction. Would that work as a prize? I don't know.
Anyway, that probably isn't necessary. The action alone is cantrip trashing that can trash from the discard. That's actually really powerful. So it doesn't feel crazy stand out powerful, but it definitely pulls its weight. There are probably plenty of boards where this could be top pick.
Magic Lamp
Types: Action – Prize
Cost: $0*
Gain an Action card costing up to $4. Play it.
Tossing this a vote because I think it has some fun potential (and a great name). I still think it should be cantrip.
Stalwart Mule
Types: Action – Prize
Cost: 0*
+4 Actions. Gain a card costing up to $1 per Action you have (Action, not Action card).
It's still kind of neat. Super village and super workshop. My biggest concern would be that it is probably better than Diadem a lot of the time. OTOH, it can actually combo with Diadem, and it doesn't take away from the usual Diadem use (securing enough money to afford another Province). And I actually like the proposed name. it's a bit of a joke, but it works.
Looking back on those picks, Shield of Virtue is my favourite but it didn't make it to this voting stage. Oh well.
Of the two I didn't mention, I liked Golden Hammer, but (I think) I cooled on it when I realized how much easier it made getting subsequent Provinces. It was pointed out in the thread that you could trash Tournaments into Provinces.
Servicemen seems fine too, but just wasn't as interesting to me.