Just finished this and like many, I am floored by the end game. This has to be one of those gaming greatest moments! On par with the big reveal in Bioshock 1 and System Shock and any other classic. I do notice two things though that I think wasn't discussed:
1. How did Clem get out of the door (in the hotel room) if it were tied to the cupboard via a rope?
2. The stranger put a walkie talkie on the table when Lee asked him how did he know so much. Lee paused and showed a surprised face - did he lose the walkie talking in earlier episodes? How did Stranger know the frequency? When they were looting his car, was there a walkie talkie?