I'm a yellow stance man. Blue is fancy and fun, red is big and strong, but yellow is the best against any opponent, as far as I can tell.
The patch made things...different. Not ruined, necessarily. I figure Raven is trying to make saber combat more like the movies, in spite of the players who aren't as interested in a decent fight as they are getting the top score. This is why I only play on Duel servers. The one real problem I have with the patch is the increased chance of a saber lock. Unless someone's stupid enough not to put all their points in saber attack/defence, or bash MB1 instead of Ctrl, it's just a waste of time.