I have a beautiful black 700 that I used/use in the studio ALL the time. I love the look, the feel and the performance. Probably the best feeling instrument I've owned. And the models are all pretty good. The acoustics are definitely better on the JTV.
My JTV 69s has a great feeling neck and tremolo system, but there's a lot I really Don't like about it.
I can't play with 9 gauge strings anymore (too squirrely) - and even with 10's the high E pops out of the string nut. It also tends to roll off the neck when doing high E bends.
I don't like the position of the volume knob - I'm always bangin into it.
Hate the headstock look, but whatever. I happened to love the look of no pickups on the 700.
Absolutely hate the fact that if you take all the strings off at once the bridge and tremolo block pops violently off the bridge posts and causes the tremolo block (which has the piezo pcb mounted on it) to smash into the wood of the guitar. I just got it back from repair for that very reason. While it was out, I just plugged in the 700 and did my live shows without missing the 69 at all.
Oh and the factory installed jtv flash v2.1 - but I am rolling back to v1.9 - the strat sounded soooo wimpy with no sustain and the volume control is now "tapered" which sucks for volume swells, which is a big part of my trick set.