21-8-22 and 31-8-12 were both very popular builds. Personally I always ran seal fate because it offered more damage and it was decent enough to get by in non-progression raiding.
Never cared for combat, but I did run hemo a decent amount, and in this patch my choice was either 21-0-30 CB deadliness (basically no imp gouge like the previous spec, worse in duels, more burst)
Or I actually used this quite a lot when the patch first came out and made a few vids with it.
http://db.vanillagaming.org/?talent#fhg ... bZxrxochooBasically the idea is to trade cold blood for imp sprint to help with the popularity of hamstring, frost nova, and frostbite in battlegrounds. Worked very well for me in bg's while I was doing my R13 grind, never had much time for world pvp due to having to constantly grind warsong, but I imagine the imp sprint is very good in world pvp also.