The OGs might have a bit more content, but it suffers alot in gameplay and in the storyline, as well as the characters themselves, some of the stuff simply wouldn't look good or make sense in the setting, like the giant spiders and crows, those could make sense in 1, but not in 2 and 3.
OG RE3 is better than REmake3 cuz even tho REmake3 has better gameplay and way better iterations of the characters (SPECIALLY CARLOS), it feels rushed even if you go in it blindly after playing REmake2, it feels more like a DLC for REmake2, specially with it's lack of extra everything. The pacing was weird, some gameplay sections came outta nowhere, Nemesis is hardly in the game as a pursuer and he was the main selling point.