Playstation 1

Over 4000 games, many of which are weirdly experimental because "how to make 3D games" wasn't codified yet, and CDs gave developers about 200 times more space than they had on the biggest cartridges from the previous gen - not to mention the lower cost of production.

Also, most of the soundtracks are absolute bangers.

Edit: another point - growing up poor, I still got to experience a lot of the PS1's library because of the abundance of demo discs.