As per the WWE Storyline, Matt was jealous of his brothers success. He felt that his brother Jeff Hardy was more successful than him and so he tried to hurt his brother. Their rivalry spanned...
Yes, they are really brothers.
it is a pretty close tie but Jeff hardy would beat Matt more then Matt beats him
No they are not twins Matt was born on September 23, 1974 and Jeff was born August 31, 1977.
Definitely Matt Hardy, more buzz about Jeff, more championship titles, 3 WORLD TITLE'S, more popularity, more everything.