Well, the top 6 from some certain "Best Games Ever" lists, would help you understand.
-Gamespy, 2001
1. DOOM
2. Half-Life
3. Warcraft II
4. Civilization
5. Quake
6. Diablo
-Dorkclub, 2003
1. Super Metroid
2. Chrono Trigger
3. Metal Gear Solid
4. Final Fantasy III (VI)
5. Final Fantasy VII
6. Half-Life
-IGN, 2003
1. Super Mario Bros.
2. The Legend of Zelda: Ocarina of Time
3. Super Metroid
4. Tetris
5. Super Mario 64
6. The Legend of Zelda: A Link to the Past
-IGN Readers' Choice, 2005
1. Resident Evil 4
2. The Legend of Zelda: Ocarina of Time
3. Tom Clancy's Splinter Cell Chaos Theory
4. Chrono Trigger
5. Half-Life 2
6. God of War
-IGN, 2005
1. Super Mario Bros.
2. The Legend of Zelda: Ocarina of Time
3. Tetris
4. Civilization II
5. Super Mario 64
6. Pirates!
-PALGN Readers' Choice, 2005
1. The Legend of Zelda: Ocarina of Time
2. GoldenEye 007
3. Final Fantasy VII
4. Resident Evil 4
5. Super Mario 64
6. Grand Theft Auto: San Andreas
-GameFAQs Readers' Choice, 2005/2006
1. Final Fantasy VII
2. The Legend of Zelda: Ocarina of Time
3. Chrono Trigger
4. The Legend of Zelda: A Link to the Past
5. Super Mario Bros. 3
6. Super Smash Bros. Melee
-IGN Readers' Choice, 2006
1. The Legend of Zelda: Ocarina of Time
2. Chrono Trigger
3. Resident Evil 4
4. Super Metroid
5. The Legend of Zelda: A Link to the Past
6. Soul Calibur
-Edge, 2007
1. The Legend of Zelda: Ocarina of Time
2. Resident Evil 4
3. Super Mario 64
4. Half-Life 2
5. Super Mario World
6. The Legend of Zelda: A Link to the Past
-IGN, 2007
1. Super Mario Bros.
2. Tetris
3. Civilization II
4. The Legend of Zelda: Ocarina of Time
5. Super Mario 64
6. Half-Life 2
OOPS