1. The Brood 2. Videodrome 3. Scanners 4. Dead Ringers 5. Rabid 6. Shivers 7. Spider 8. The Fly (The original was better! IMO) 9. The Dead Zone 10. Crash 11. eXistenz 12. Eastern Promises 13. A History of Violence
Cronenberg is a master director, most anything he touches turns to gold. I haven't seen his latest two movies though. That said my favourites would have to be between Videodrome and the Brood, just depending on my mood.
I feel that I need to watch his movies through again, maybe do a movie of his each night for just over a week.
They all have a similar dark feel, but I think that Videodrome is my favourite. It's been a long time since I've seen Rabid and Scanners though. Something about Rabid just made me feel... uneasy, but it was great.