Psone is teh dreamcast of the 32-bit gen. It is wat dreamcast couldve been. Saturn was supposed to be like the Ps2 except it lacked games, programming and 3d effects in the gen which transisted from 2d to 3d. I think its more like the ps3 personally. Right now anyways.
Saturn has 1000+ titles, Psone has 7300+ titles Dreamcast near 700 I think internationally (I may be wrong). Nintendo has always been in its own field with less than 500 n64 games. Sega and Nintendo will always be king of videogames in starting these large game libraries, well technically it was atari but the console wars really started with sega and nintendo.
So it was Sega vs Nintendo, Sega vs Sony, and Sony vs Microsoft. If you like console wars you like nintendo and sega because they escalated it to its current position. Sony and Microsoft are now the big rigs on the field. Saturn was worst than ps1, because of its abnormal price, no hit exclusives and unfriendly user fan base. I just didnt get it in the usa at least. Saturn seems like a Japan only system. It stopped what its predessors began in key hit game titles like sonic or got rid of its numerous arcade game franchises like space harrier or outrun to replace it with far superior arcade games, since technology was slower back then.
There were very few games on Saturn which its best known for. These games originate on the system, Panza Dragoon, Knights and a few rpgs I cant think of right now. Worth getting, not worth playing. It was the system that was only fun for rich people with big egos (eg Bomberman was fun with 8 players, show-and-tell was not). Thats why Psone is better than Ps2, because it invented what made the ps2 great, reinventing a gen, and destroying the competition with fun franchises. Ps2 just carried on its legacy.