Good first thread. I have been here since last year and have yet to make one. :)
It is strange, I have trouble actually formulating my top 5. I suppose because my tastes have changed somewhat through the console generations and with my mood. Resident Evil, for instance, would have been number 1 a few years ago. But, here goes anyway...
1. Assassin's Creed
2. Arkham Series
3. Fallout
4. Resident Evil
5. God Of War