Ed, Edd n Eddy vs Joe, John n Johnny is a upcoming fanfic and the first one to be written by Steven1991.
Three new kids named Joe, John and Johnny move in to the Cul-de-sac. They look and talk like the Ed's, but the only one difference is that the Joe's (the name given to the trio) are actually nice to the other kids, helping them with everyday things and giving them presents etc.
The Ed's (mostly Eddy) are jealous and want to bring their rivals down. However, while spying on them, the Eds discover that the Joes are actually phonies and want to take over the neighbourhood...