MEMENTO -What am i doing? Oh im chasing this guy...No, he's chasing me

Ever since I watched Memento for the first time over a year ago, it easily became one of my top favorite movies.  The fact that it is told in reverse order was at first hard to comprehend and follow.  Ill admit I had to watch it a few times before coming up with my own solid conclusions on who i believed to be lying and what story is true.  The compelling aspect of the film is that it is open for your own interpretation.  There is no definite answer to if Teddy was lying or being completely truthful, if Leonard's wife was murdered or survived it, what the true story of Sammy Jenkis is, how much of Sammy's story is actually Leanord's, ect.  The director Christopher Nolan has not even answered these questions.  The objective of the film being backwards is that when Leonard does not know where he is, the audience is as lost as he is.  The scenes in black and white are in chronological order where Leonard talks to an unknown person on the phone telling the story of Sammy's condition(it is implied to be Teddy).  Leonard solely relies on only his own handwriting and facts.  He doesnt take anyones word on anything.  One conversation that Leonard has with Teddy that stood out to me was at a diner where he explains and sums up why he cant rely on memory.  He says how memories can be distorted and are irrelevant when you have facts.  The camera is always constantly on Leonard so we follow him everywhere giving the fullest effect of what he is going through.  The twist at the end is we find out (if you chose to believe this is the truth) that the real "John G." was found and killed by Leonard a year prior with the help of Teddy.  The chase and investigating gave Leonard a reason to live, so (supposedly) he himself ripped and crossed out pages of police reports creating an unsolvable puzzle.  He admits in the voice over that he is going to set it up so Teddy is the murderer and will put it all to rest.  By this it is revealed that Leonard knows Teddy did not murder his wife, but will create a puzzle to lead himself to believe he did.  I also have recently watched the entire film in chronological order and i have to say its more confusing.  At the beginning of events (the end of the original film) when everything is revealed, by watching this first you dont understand what the significance of it all is.  After watching this you need to decide for yourself what were facts and what were lies.