I've already prepped my game for Seasons.  I have removed all hacks and hacked objects and more than half of the CC.  I went through my CC, all 7 gigs of it.  

   I will however be pulling my downloads folder prior to installation.  I am starting from scratch on this one.  I took out all of my neighborhoods so I could start with a clean slate.
Hopefully the less whiny and what's this hacks will work.  Those are the two hacks that I will go crazy without.  I did this with Pets so I could test hacks and I plan on doing that again with Seasons.