1:Gen 6: (Dreamcast, PS2, Gamecube, Xbox, GBA) the only gen that had the big 4 in it all at the same time, this generation brought forth a lot of amazing and innovative games.
2:Gen 7 (360, PS3, Wii, PSP, DS) Although this gen suffered from some issues, like on-disc DLC, it also had some of the most innovative games.
3:Gen 4 (SNES, Genesis, Gameboy, Game Gear) The one that brought some of the best games of all time, and revolutionized gaming. Only reason it's not higher is because, in my opinion, most of the "revolutionary" games have had sequels which bested the originals. Still, a very innovative generation.
4:Gen 5 (PS1, Saturn, N64) Great generation which suffers, due to how the games aged. still, it brought us some great games.
5:Gen 3 (NES, Master System), Amazing gen that rebooted gaming for everyone. Sadly, most of the games have either aged badly, or are very broken, due to the lack of experience. Still, there are great games, mostly from Nintendo, Konami, & Capcom.
6:Gen 2 (Atari 2600, Intellivision) Good gen, but it killed gaming, and most of the games are primitive today. still has some great ones, like Crystal Castles, and Mappy.
All of these are just my personal preference. I love all games, as i said above. Anyways, what about you guys?
