It'd be a pretty good give-and-take series.
One point I'd like to add is that Curry would expose Shaq's pick and roll defense. Shaq was always a below average P-n-R defender and you have to hedge hard against Curry. Whoever between Fisher/Bryant would have majorly increased defensive responsibilities. Lakers had a good defense but the point of the Curry pick-and-roll is to draw the big man (whoever it may be) out, have the 4/5 roll, and see if anyone tries to come off the shooters on help defense. As good of an athlete as Shaq was, he didn't like to step out and guard or switch and that started as early as his Orlando days when Ewing would sit out and shoot open mid-range jumpers while Shaq would more often than not wait in the paint. He can't do all the time against GS. I've argued on other sites before that Shaq should've won DPOY in '00 but he wasn't as good defensively in '01.
There was nobody in the league then to stop Shaq individually though, and Bogut/Ezeli aren't strong enough to handle him. Shaq by 2000/2001 was at his physical peak in terms of conditioning and quickness at 335ish lbs. As good of a defender as Draymond is I don't see any way he could effectively guard Shaq. He's not Marc Gasol. Shaq would average 30+ regardless of the attention he receives in terms of help defense. Indiana did everything they could to stop him (Indy players talked about trying to literally push him to the elbows. He'd keep moving towards the block so they'd have no choice but to foul him lol) in the 2000 NBA Finals and he powered right through a very good defense. They had shooters too.
Also should be noted when GS inevitably tries a Hack-a-Shaq strategy, Shaq was a great 4th quarter player regardless of if he was making his free throws. Dude averaged 11.5 fourth quarter PPG in 2000 (courtesy of Elias Sports Bureau). He shut shyt down when he knew it was time.
Also put up 33-16-5 vs. DPOY Mutombo and another good Philly defense in the '01 Finals.
It'd be pretty good series, but I think Los Angeles has an advantage with Shaq (didn't even mention Kobe but that was his first year of his prime and could've at least guarded Klay/Barnes/Iggy well as an All-D 2nd teamer, would've likely focused on Curry in crunch time). He was that good at his peak. Again it'd be a give-and-take series because of various advantages for both teams, but I like L.A.