All 3 are such nice watches and so very Patek.
One way I'm thinking about this:
If I owned all 3, I would probably wear the 5970 the most, followed by the 5070.
Not sure how often I would wear the 5327, even if it's independently a very nice PC.
So it would really come down to whether I would give up the 5070 to get the 5970.
And I think I definitely would do that.
Cheers,
John