SA-Exim or EXiscan

Hi, 

I have been using SA-Exim on Debian for a few years and have been 
very happy with it. My Debian machine needs replacing and I have to 
think about the config/architecture for the new mail server. I 
remember a comment on this list that someone thought that new user 
would be using exiscan these days.

Is that correct? Is Exiscan the way to go now?
Thanx,
Dp.