best in terms of what? a MM is basically a plank of wood with a pickup not much to them. 
If you're thinking of a Gibson Melody Maker then the answer is none of them.
Roses are red
Violets are blue
Omae wa mou

Quote by Axelfox
It's a student guitar with bottom drawer hardware.  They do still serve a purpose for some but there are a LOT of nicer guitars out there for the same $$.
"Your sound is in your hands as much as anything. It's the way you pick, and the way you hold the guitar, more than it is the amp or the guitar you use." -- Stevie Ray Vaughan

"Anybody can play. The note is only 20 percent. The attitude of the motherfucker who plays it is 80 percent." -- Miles Davis

Guthrie on tone: https://www.youtube.com/watch?v=zmohdG9lLqY
look at Sublime Guitar Company (SGC), i have a very nice Cheftain, as do a few people in my Church, and they make a really nice version of a gibson melody maker that one guy owns.
I'd like to find a 1959 Vintage one with mahogany and rosewood.  I believe this is the same kind Carl Barât uses from the Libertines.  If I can't find one of those, is there another MM comparable to that? 
I've always wanted an old Melody Maker as well. I had a deal on one a year ago, went out to play it and kindly declined. It wasn't good. It was a cheap guitar 50-60 years ago and it still felt like it. I'd like to get one after all one day, but it'll have to be better than the one I played.