Alternatively, here's my entry for "Beating GNU wc with GNU wc":
$ dd if=/dev/urandom of=100m bs=1M count=100 2> /dev/null
$ time wc -w 100m
2319144 100m
real 0m4.543s
user 0m4.512s
sys 0m0.029s
$ time env LC_CTYPE=C wc -w 100m
2308032 100m
real 0m0.842s
user 0m0.842s
sys 0m0.000s