You ether like them or hate them. There is no in between. Just like the wing on your car. I can't stand it (no offense) but like I said it's one of those like it or hate it things.
^^ very true. Everyone's taste are different, and thats a good thing because if they weren't we would all be driving the same exact car and what fun would that be?
I couldn't tell you any benefits but the plastic seem to be more low profile where as the metal ones stick out farther. I have had no problems in past 2 years with my plastic ones.