I much prefer Person of Interest to Five-0. Characters, cases, story arc.
I do enjoy Five-0, but only because of the characters - some good chemistry there and fun dialogue. But the actual cases are usually rather lame, whether it's a run-of-the-mill homicide they seem to have stolen from HPD (which I guess no longer has a Homicide unit
), or one of the arc episodes... The arc eps are the worst I think, actually. The whole thing with Steve's mother is terrible.