I love Melee. I think that it, despite its flaws, is one of the most well-designed fighting games out there, even if some of the reasons the design is so good weren't exactly intentional, and some of the flaws were. Every tournament I watch, I see something new from this game, and it makes me more excited to watch more of it.
In addition, I've thus far been fairly underwhelmed by Smash 4. Not to say I think it's an entirely poorly designed game, but some of the decisions made are baffling to me, and, well... Duck Hunt Dog is a travesty.
That said, I think Smash 4 should be given a chance on the stage. Most of my reservations about this game are founded more on theory than on observation, and truth be told I'm interested to see how it develops, at least for the first year or so. By and large, at the beginning of Brawl's lifespan, the entire Smash community was initially happy to see Brawl get a spot in Evo. Remember, the controversy wasn't over Brawl vs. Melee, it was over items, and Mr. Wizard is a pretty smart; he won't make that mistake again. I think hope that the Smash community has matured enough over the past seven years that we're able to come together again for this game, at least long enough to see if it can be as interesting at Evo.
At least we won't have to watch a master of all but one aspect of the game lose to a mere journeyman of that one aspect.