What do you think it is? I'm going to say my top 3 is:
1. Super Nintendo
2. Nintendo 64
3. Playstation 2
Competed with: Sega Genesis
SNES had countless classics back in the day. Chrono Trigger, FF3, Secret of Mana, Link to the Past, Super Mario Bros, Street Fighter, F-Zero, Mortal Kombat, Donkey Kong Country, StarFox and more. Anybody who knows gaming has to have SNES in their top 3.
Competed with: Playstation, Sega Saturn
N64 was classic too. Ocarina of Time and Majora's Mask, Goldeneye and Perfect Dark, Super Mario 64, No Mercy, Cruisin' World, Smash Bros, Conker's Bad Fur Day, Wrestlemania 2000, DK64, Rainbow Six, Turok, Duke Nukem 64, Megaman 64 and Resident Evil 2. N64 took gaming to a whole nother level with 3D gaming as well as 4 controllers and a memory card and rumble pack.
Competed with: Xbox, Gamecube, Dreamcast
PS2 has arguably the greatest game library of any console in history. Oh man where do I start... GTA3, Vice City, San Andreas, Gran Turismo, Final Fantasy 10, DBZ Budokai and Tenkaichi series, Madden, NBA Live, NBA 2k, Smackdown, Need for Speed, Metal Gear Solid, Call of Duty 2/3, College Hoops, Devil May Cry 1/2/3, God of War, Guitar Hero 3, Killzone, Mortal Kombat, Rainbow Six 3, Ratchet and Clank, Jak, Resident Evil 4, Sly, Soul Calibur, Tekken 4 and 5, Tony Hawk, and many more. Free online, many add-ons and plays DVDs. Graphics weren't quite as good as Xbox's, but its library gives it the edge.