I was thinking about new trophies.
The first one could be named "best ratio" for the first, the second, the third, the first five, the first ten and the first twenties to give to the ones who have the better ratio victory versus defeat (or victory versus games played). This trophy could be applied to any game (even hanabi)
The second is more interesting and could be names "best series" for people who have the best series of victory without any defeat. In my opinion it cant be a ranking so it will be a trophy earn for 5, 10 and 50 victories without any defeat. For each defeat you lose the trophy and your series start again at 0.
Maybe it was already suggested. My apologies if it is!