Suit = generally, to the look
Match = when clothes look nice together as an outfit and/or maybe colours are suitable
Fit = they are your size.
Go well together = Match.
Examples:
This shirt and skirt don �t MATCH at all. (they look bad together)
This shirt doesn �t suit me = I don �t like this shirt, I don �t look good in it.
This skirt doesn �t fit me, it �s too big.
Jeans and dresses rarely go well together :)