I have mixed results. I left both VV and VV3 alone for 72 hours on fast speed.

When I came back, only 7 villagers were left in VV. There were 70 villagers in VV3, but the chief only aged 30 years, so I'm not sure what happend there. I am certain that the game was on fast speed the whole time.

In VV they are definitely better at breeding, while the male checked to parenting made 80 children, in VV3 there were tops 10 children made.

So in conclusion I have to say that yes, VV is better at surviving.