If Melee hadn't earned its way back into Evo, would there even be a discussion for Smash 4's inclusion? Would there be any doubt about Melee's return if Smash 4 wasn't about to be released? If most Melee players were moving onto Smash 4, it'd make sense to revert to the newest game in the series, but that's not the case. Most Melee players, especially the skilled ones who have been playing for years, are not going to prioritize Smash 4 over Melee or even play it at all. Why then, would the Smash 4 community be entitled to REPLACE Melee at Evo? Let me emphasize this point: Smash 4 would not only be receiving a spot at Evo it did not earn, but it would be at the cost of a game and community that HAS earned it.
It's no secret Evo traditionally includes the most recent iteration of a series, but Melee has been an exception the past two years, and both Evo and Melee have enjoyed success from this return. If the Smash 4 community wants to play their game at Evo, I think they should have to earn it the same way every other community has. Obviously there is more overlap between Melee and Smash 4 than most games of different series, but I don't think there is enough overlap to consider the communities one in the same. They are very much distinct entities, and there's already a prominent community Melee players who do not plan on playing Smash 4, and vice versa. Frankly, if I was a Smash 4 player, I'd feel guilty and ashamed to take Melee's spot solely because my game was newer. At the core, this debate has very little to do with which game is better and much more to do with the communities behind the games.
If anyone truly believes the Smash 4 community, which hardly even exists yet, has earned a spot at Evo, not just compared to Melee, but with all of the other fighting games, then you should go ahead and vote for Smash 4. If, however, you share my perspective that Melee's spot should be reserved for Melee so long as the community continues to support the game they love and Evo every year, then I hope that you will vote for Melee. To the staff and organizer at Evo, I can only say that I have the utmost respect for their tournament's legacy, and I'd like to believe a game that has been supported to the extent Melee has earned more than to simply be discarded at the sign of a new game.
For the record, I hope both games are able to enjoy a proper Evo experience, however unlikely that may be. Despite all of my distaste for Smash 4 as a competitive game, I have no basis for depriving the Smash 4 community of a chance to prove their worth on the main stage as long as it's not at the expense of Melee. To me, it is no different than how I view Street Fighter or Skullgirls or Marvel. It's a community that wants to play their game at Evo.