The original has better CGI somehow, better sustained shots of him swinging, and a more contained story. Raimi-Man2 has plot that happens because its supposed to. Doc needs to find spider man? Throw a car at your only source and hope he lives long enough or has spider senses so he can dodge, then ask questions. Not even gonna touch the reversion of Mary Jane.
I do think the train sequence was the best part of the entire trilogy, though. Spidey 2 has some good moments in isolation.
Spider-Man 1 doesn't grab for a deep message, but I enjoyed it more as two hours of my time.