With his characters ,magic,coliseum,events,espers etc... and see always leo die
I'm going to says the best hacks from ff6 of this year 2015 and ending 2014 :
FF6 Leo edition(Leo don't die
and shadow die instead,there more interesting things also,Siegfried for example 
)FF6:The return of the dark sorcerer(This is a big hack with more and new magic,fantastics characters,new events and lot more)The best for me by now.
FF6 T-Edition is in japanese,there someone translating english but there a big thing in this one :new costumes ,new magic ,more and news types of weapons,Music Player with tons of music from Square, lots of new events ,bosses from others ff with his music.
I can't play to ff t-edition,because there something odd where Terra say me a thing and I can't play
and after I've other where I'm in middle of the sea and I can only see the screen and the music box .Write here if you can to play to this hack.
All this hack can be found in http://www.romhacking.net/?page=hacks&g ... tartpage=4