Quoting from pinball news:
"Once the Battle for Cybertron wizard mode is over, all the characters on the feature grid are unlit and you're effectively back at the start of the game, only with a slightly higher base value for each mode and a whole heap of points to your credit."
Battle is the final mode in TF. Valinor is the final mode in LotR.
I really think you should go check out the rule sheet for LotR. It will make you want to play it again for sure!
Edited to add: And I'm pretty sure you will change your opinion on which is deeper. They don't say LotR is the second deepest game behind tSPP for nothing. Keefer's the man!