Donkey Kong was my favorite game growing up and I played it a lot. I have played the original at a few locations in the past year and now have a 60 in 1 in my home.
I can’t tell that there is much of a difference. Those saying the game play on the 60 in 1’s is completely different and off are exaggerating. There may be some subtle things here and there but they are hardly noticeable, even to someone like me that loved DK growing up.