Played Crash on PS1 as one of the first 3D titles and that was impressive. Felt like I played out one of the Saturday morning WB-cartoons.
Never had much access to a PS1 but Tekken 3 and Tony Hawks pro skater 2 was played quite a bit when visiting friends.
Probably like Metal Gear Solid the most, but it did not have the same impactful first impression on me like Crash, Tekken or Tony Hawk.