I bought Punch-Out from the Wii U e shop when they offered some classic NES titles for a few bucks a pop.
Sure, that was the version that replaced Mike Tyson with Mr. Dream, but I'm just gonna put this here anyway.

My precious memory from the NES version of Punch-Out was when I got stuck at King Hippo. My struggle caught the attention of my dad and my brothers who pitched in, in an attempt to help me figure out how I was supposed to get even a single clean hit in. Eventually beating him felt glorious, and it was a moment that made me fall in love with the series. I've never actually beaten Mike Tyson/Mr. Dream, but I'm sure that will happen some day.

I find that Super Punch-Out offers a different experience compared to its predecessor on the NES and successor on the Wii.
Super Punch-Out has more similarities to the arcade games, seeing as the star punch has been replaced by the super meter, previously seen in the arcade titles.

Super rewards agressive play, much more so compared to MTPO and POWii, in which defensive play is generally more optimal. Super allows for the player to get more free hits in on the opponent, if they can get around the opponent's guard. An aggressive player will most likely find that they can make their opponents dizzy from the repeated punches, which allows for a brief window of time that results in an instant knockdown with a super punch.

Super Punch-Out is tough, but I find myself coming back to this game every now and then. I've only beaten the game once, but it is extremely satisfying to come back and discover new tricks and strategies for each opponent.