[Exim] Spam Assassin vs. Bogofilter

I am looking into integrating a spam filter with Exim. I was mainly
looking at Spam Assassin, but a colleague gave me a magazine article
which mentioned Bogofilter (http://www.tuxedo.org/~esr/bogofilter/). I
was wondering if anybody on the list has used or tried this software
with Exim. If so, do you know how well it compares with others, e.g.
Spam Assassin?


James Thorne.

--
UNIX and Comms, Computing, Royal Botanic Gardens, Kew
Tel: +44 (0)20 8332 5729
Email: j.thorne@???