After 6.0.2 the new determination changed a lot my warrior..
The PVE way is pretty much better, I improved my DPS in a nice %, the problem is the PVP: old Determination helped you a lot to do damage and in the same time sustain a good amount of it from rubies, now you simply can't no more use Determination for PVP (not with the warrior), coz to keep it high you must inflict periodically a good amount of damage, and as you know in PVP this is simply impossible.
So Determination for warrior:
PVE OK
PVP NO
This happened to me in P2P server, I'm playing there, but I don't think there is so much difference in f2p..