Whoa, hold on a minute.
You guys love JJ & Jeff and hate Back to the Future II?
Now I know something is amiss. Are you guys impostors from Opposite World?
Back to the Future II is far and away the best entry in the series, hands down. III is by far the worst (you always know a series is done when it either goes Western or goes into outer space), and I is OK.
BttF I = awesome, awesome. When it came out, it was "one hell of a ride."
BttF II = Lame, lame, lame. Even if I were to try to evaluate it on its own, it falls apart because it is devoid of fun, tension, compelling story, etc. etc. I had more fun wasting my money on Harry and the Hendersons (and that's saying something). I
did enjoy BttF 2 more than
Cool World (but this isn't saying much, is it?). After all these years, I'm still slightly annoyed I paid good money to see Cool World.
Hell, Short Circuit 2 did a better job than BttF 2.
BttF II, unfortunately, is on par with Speed 2: Cruise Control.