Rain Man- favorite movie, performance by an actor

It's not often that a movie seen during childhood holds up over time, but one movie that sticks with me with every viewing is Rain Man. When I saw it as a kid, I was mesmerized by Dustin Hoffman's performance as an autistic savant.  Of course, it was easy to mimic Raymond Babbitt (and I still do sometimes), but the depth of his character was stunning back then.  When I was a kid, I was rooting for Raymond to be left with brother Charlie (Tom Cruise), but watching as an adult, that's clearly not an option, as Raymond has too many needs and a sheltered environment is obviously best.  Charlie goes from practically holding Raymond hostage for part of an inheritance to not wanting to part with him.  Heartrending movie, my favorite, and Dustin Hoffman's performance is so far my favorite performance.