DS9 was one of my favorite shows period. They used every character fully, both recurring or main. I could never figure out what the point was for the character of Travis Mayweather. Harry Kim had a lot of scenes and major parts in several episodes while Mayweather had possibly less screen time than Morn on DS9.
Hell, Kim had more time on screen than Sulu ever did on TOS
: he even got to schtupp some gals! Sulu never got that at all.