Oh, just look at mine ! We are talking about personnals win rate with, right ?
1-5 :
My first one is, of c(o)urse, the evil
Followers ! Basically, when someone gains this card, I win if and only if I gain it ! And it has a pretty low win rate
Followed (^^) by two seaside $4 terminal silvers :
navigator (o_O I buy this so seldom... only if no other action that gives coins) and
cutpurse (which is pretty harmful at the beginning, more often than you might buys. And after... it still gives $2).
Then, another prize :
Trusty steed.
Then, and I don't believe it as I lost a moneylender game few days ago with it :
cache !
6-10 :
6th is
Pearl Diver ; why not, it's better in games with throne room, king's court, conspirators, peddlers and vineyards, and bane of young witch, otherwise I don't really know.
7th is
Bag of Gold8th is
Fool's Gold ! I hate this card sooo much : why a treasure costing $2 would give you $4
So... hurry to buy them, because your opponent won't wait !
9th is
Princess ! Okay, the last prize, because I never understood the benefit of Diadem which is very low-ranked
And to close my top 10...
Trade Route. Okay, why not... if it's the only trasher, sometimes I buy early estates and duchies only to raise their value while I trash cards, especially coppers !