i dont really like discussing this kinda thing because people get all upset over it
melee is more in depth yes, however there are only three real good characters (fox, falco, marth) my favorite thing about pm was how the deadvelopment team wanted to balance everyone, ganondorf, bowser, and dedede are actually playable, they aren't some easily combo'd hitbox character.
and imo melee has a very toxic community, most people go around saying if you prefer something else to melee the only reason is because youre bad at melee.
that's all i've got to put into this