Arguments for Amavisd-new or MailScanner?

[Michel]

Hi!

As a long time MailScanner user and without any experience of AMAVISD-new, 
what are the arguments against using amavisd-new for, e.g. this config:

Sendmail + {AMAVISD-new,MailScanner} + SpamAssassin (+ ClamAV)

Postfix + Amavisd-new is, I know, without doubt the best combo, since it's 
using the Postfix content filter... but what about Sendmail and/or other 
MTAs?

(just trying to pick up some good arguments to say whenever I need to explain 
why I'm choosing MailScanner and not amavisd-new)

Thanks!
/Michel