Point-free programming style

How do I write the factorial function in point-free?

fact n = foldr1 (*) [1..n]

Which is faster
add1 = 1 +
or
add1 x = 1 + x
???

>>59
I assume you wanted to pass an arguments array
>>36
"bench() doesn't use arguments array because the code would
include a slower for(;;) and conditional which would made the benchmarks slower."