How is the PS1/N64 version of RE2?
I remember asking my friend randomly, must have been like 2007-2009, "Favorite game, all time?" and he thought for a minute was like ah man, tough one then told me "probably RE2 for the N64" which at the time really took me by surprise
The N64 version is an impressive port, but the audio took a major hit. Aside from the quality getting a downgrade, one of
the best music tracks was completely removed to save space. However, the N64 has some cool game features like an item randomizer, extra files that connect RE2 to RE3 and Zero, and you can choose the blood color.
Overall, I think the PS1 version may be the better way to experience the game, and yes,
RE2 Classic is 100% worth playing. RE2 Remake is fantastic, but it is essentially the "cliff notes" version the story. The best way to experience the classic RE2 is doing a Claire A/Leon B scenario (Leon A/Claire B gives you a different story that isn't as satisfying). Things you do in the A scenario will carry over to the B scenario, and I think the music, art direction, and especially the story and characters are MUCH better in the original. For instance, Leon and Claire actually work together more, Ada isn't a complete bitch to Leon, and Chief Irons is far creepier and much less of a goofball.
Regardless, RE2 Classic and RE2 Remake are easily top tier RE games, and they are different enough to feel like their own unique games--both worth playing for different reasons.