Well yeah... You may notice that each of the games I selected were the stepping stones of the First Person Shooters of the fully 3d rendered era. Doom was good for its time, and Duke Nukem 3D was always a favorite of mine. However neither were truly 3D, nor did they have anything in the way of realistically designed levels or objects (Though Duke Nukem was very impressive to a 6-7 year old).
Anyway; Here is how I'd rate them as being the most memorable:
1. GoldenEye 007
[ties with]
1. Medal of Honor & MoH: Underground
2. TimeSplitters FP
3. Duke Nukem 3D
4. TimeSplitters 2
5. Killzone
6. Black
[ties with]
6. Cold Winter (amazing game)
7. Perfect Dark (N64)
8. Call of Duty 4
9. DooM
10. James Bond - Nightfire (wasn't bad)