I wouldn't worry about things like length or replay value here. To do so is to undercut what these experiences offer, kinda a weird, old way to keep boxing games and the experiences they can convey into a very limited shell. I highly recommend both games, or either. Can't really go wrong. One thing I can stress is play them only when you're in the right mood. First time I played both games I gave up, just didn't grab me. I came back when in a much more chilled mindset (experiencing/absorbing what was on offer rather than trying to "game" the game, if that makes sense) and LOVED it. Goosebumps and awe a-plenty both times