Never heard of 1480 to be honest, but 1620 is awesome!
I used to listen to 590, but now I can't stand it at all... Husker Mondays on there was alright, but now it just sucks... Matt Perrault is just god awful... I can understand the talk of Creighton, but they just do it over the top and never talk about anything I give a sh#t about. Oh wow next we have the interview with the Drake basketball coach, who gives a crap??
1620 actually has some personality and make non husker topics interesting and funny which 590 fails to do horribly.