01: Resident Evil 4 (Not the first one I played but enjoyed it the most, awesome story and game mechanics)
02: Resident Evil Remake (Most scary one)
03: Resident Evil 6 (Never understood the hate, it's one of the best and most diversified action games out there, even if it's not that scary anymore)
04: Resident Evil Zero (Very scary and I liked the fact that you could switch between two characters)
05: Resident Evil 5 (Lots of panic moments with awesome graphics and enemy design)