The score is great.
Nora is acceptable but nothing outstanding, she just did her job and that was it.
Plot is acceptable, just typical revenge with some honourable gestures.
Lead villians are acceptable but hardly outstanding. Can you explain how they were dignified and believable in the film?
Some good fight scenes but a lot of it can be bull.
Nice cinematography at some bits (hardly Chris Doyle however - though I'd rather watch FOF than Wong Kar Wai's hard-to-follow junk. Get's my goat that something practically unwatchable thanks to cheap deliberate lousy camera work makes so much money).
What's bad:
Bruce's Jerry Lewis impressions for a serious film are a little stupid. 10 minutes before, he's ripping people's heads off for revenge and now he's cracking a smile (during the telephone bit)...
Karate students are wearing judo uniforms.
War-cries.
Bob Baker vs BL fight.
The 'Futuristic Plans' about taking kids to school. Makes it seem like we are in some kind of modern-day drama (queesy, cheesy and crinching).
I wouldn't blame Lo Wei for the 70s couple and 60s car, he was probably listening to the horses and someone else had to direct it for him

.
It's an OK movie (for it's time, I'll not bash it too much) and it does have it's moments with it's cinematography and stuff, but strictly that's it (quality-wise). It's definately classic, but for the wrong reasons - mainly hype brought it to it's classic status.
What bewilders me is how the fast'n'furious combat wasn't in earlier films and how it just magically appeared in 1978. I hate swordplay (mainly the slower ones pre-1978 mainly - particularily done by Shaws), just wannabe-MAs throwing chunks of metal around.