honestly man, anytime you're talking about lifting there's almost NEVER just one answer. the answer depends on so much. one thing that others failed to ask about that is majorly important is your goals. want to get bigger? stronger? leaner? there are almost no lifts that, when performed properly, are useless.
im a huge proponent of variety. if you perform any one movement for too long you'll eventually run into repetative motion problems. even dorian yates, one of body buildings greats, had problems with this. if you're just doing them with really light weight as part of a circuit you wont get huge traps. a few others had decent suggestions for semi-substitutes, but just dont get in the groove of doing only isolation movements. i truly believe that compound lifts are the key to most all good physiques.
as for the pain, that could be caused by any number of issues and i'm not even gonna try to guess over the internet, but if it hurts dont do it