You do realize that if you add 3 million sales to PS3, you have to subtract 3 million from somewhere else, right? Actually, you'd have to subtract 4-5 million since the PlayStation family is already overtracked as it is, as confirmed by Sony's own announcement:
VGChartz totals: = 526.74m
8/9/2018 Announcement: 525.3m
Sorry for the late reply, I'm just curious as to how you would configure the numbers above in a way that would increase the PS3 to 90m, yet still fall in line with Sony's own announcement of 525m PS Family total (as of 8/9/2018). Wherever you increase from, you have to decrease from somewhere else. And mind you, Sony's own announcement confirmed that those #'s above needed to be decreased in place(s) from the start.
I knew I would forget to respond to this.
First I said closer to 90m for PS3, with most of my estimates at 88.5m-89m. 2nd this is mostly about official shipments, I don't believe we can use Vgchartz 16m for Vita. 3rd Vgchartz always has PS1 sales wrong with actual final shipments at 102.49, 1.76m below Vgchartz, eliminating most of the surplus.
Check this post for more details: http://gamrconnect.vgchartz.com/post.php?id=8863663
With that post we can isolate PS home consoles and forget about Vita and PSP and figure out PS home consoles alone up to that point and then we can use some simple math for the rest.
With all this in mind I think it easy to see that PS3 or PS2 or both had more sales.