I coincidently played on both servers that the OP did, I can vouch that he certainly knows what he's doing. A damn sight more than most in fact.
I was a Sentinel from launch, and more recently a Marauder after a server switch. We are currently over-powered, anybody saying otherwise is either fooling themselves, or is putting up false bravado. Prior to 1.2, we was amongst the strongest PvP class in the right hands. We were good, not unbeatable. We're just outright OP now.
The 10% buff we recieved to Ravage/Master Strike needs to go. We can still keep the Rage/Focus trait that allows us buff it's damage, but it needs to be reduced 10%.
Undying Rage and Guarded by the Force are similarly too powerful. Adding a -99% healing debuff to go along with it would balance it, whilst it still remains a viable, last ditch effort. Otherwise scrap the skill entirely, make Force Camo a 100% damage reduction (like the trait), but have the damage reduction end if we attack early from stealth. It therefore retains its use as an escape skill, can still be implemented as a gap closer, and stops being an 'I win' button. We probably wouldn't need it often anyway if we weren't seen as OP to the point everyone focuses us down.
We all know the nerf is coming, I'd rather they just get it over with now. I just hope they don't nerf the wrong things ala Sage/Sorc.