I agree with the SOCOM 16.
I haven't shot one, but I had an M14S with both fiberglass and wood stocks and liked the feel of the fiberglass one better even though it looked 'purtyier' with the wood one. Plus it is a little lighter and more resiliant(the stock). It was fun to shoot and wouldn't mind the SOCOM for a bit of a shorter weapon.
M14 through and through. I like it better than the M16/M203 that I was issued. I'll take the weight, it'll just build up some muscle .