for Medium to light, I wouldn't consider the Domination, the Original Paradigm, maybe, but if the conditions border more towards the light condition, it's not the ball you'd want either (I really like the Paradigm line, but they need some oil).
For light conditions, I'm hearing great things about the straight flush, for Lanemaster. Make no bones about it though, that is not a ball for oil. As a tweener/stroker, this ball is designed to play straight up the boards on light oil or fried conditions.
On medium conditions, the Paradigm and Domination would be good choices, but only if the oil is there.