It's Hard To Choose Only One But Based In The General Quality Of Their Works....
Chars:Jmorph, Rajaa,Kamekaze, Cybaster,The None, POTS, Cyanide, Koopa, Splode,Eli King, Warusaki3, SeanAlty, Borghi, Neat Unsou, 9
Stages: MOTVN, Fancy Feast, ExShadow, JeanBureau, Caddie, Hoshi, Margatroid, Tamez, Yoda, Darek, Luneth
Lifebars: V-Nix, Big Boss/Gray Fox, Phantom Blood
Screenpack: NoZ, Big Boss, Phantom Blood, SxVector
Palettes: MC2, DavisMaximus, MalaDingDong, Kirishima
Portraits: Saikoro