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
???

If you need more details:
1. i run latest nightly firefox build.
2.the code is executed via Greasemonkey applet which loads through about:cache see http://frozenvoid.blogspot.com/2008/12/javascript-editing-utility.html