I have used both specs and I still usually revert back to my 32/7/2 build. I tank HM TFB and NiM EC without any issue, BUT......taunt is part of my normal rotation. I am not saying full immortal is better than hybrid, but for me, full immortal has worked better in my case.
I agree with the consensus of most here though; Jugg Tank dps does need a slight boost. When I look at the damage output compared to our PT Tank, it is stupidly noticeable how much our damage is gimped. Though, our survivor-ability is on par or better, so I do not think this is just an easy solution of increasing our tank dps. Again, these are things that I have noticed and in no way feel that I am all knowing and all correct...lol. Just some observations to add to the conversation.