Heres a replay of a game I just played with usage of 2 Tigers, I feel I would have won the game with the higher armor pre-patch
http://www.coh2.org/replays/7921/new-tiger-can-t-stand-up-to-su85-or-is2/page/1#post_id74675
Didn't expect to see this posted on here!
You lost that game because you were way too reckless with your armor. You lost your advantage when you charged that P4 too far and sent your ostwind around and got surrounded.
Then when your tiger came out you sent it around alone, all while I could see it with the watchtower and had plenty of time to prepare my at gun and su.
After you repaired it, I had my IS2 out and lured you into it with the SU. Then I was easily able to hunt it down after it was weak and unsupported.
Then your second one ran straight into a mine and my at gun and IS2 where able to damage it and force it off. Then my newly repaired and vet 2 SU flanked and took it out because you didn't have anything to protect it.
You didn't have enough support for your Tiger and you payed for it. I think it is a little unrealistic to believe that should beat a SU-85 and IS-2 without any support.