Yes, Nintendo first party is still much stronger than PlayStation, especially when revenue is taken into account. Yet the improvement PlayStation has made this generation is remarkable, possibly unrivaled.
I can't be bothered going through every title so let's just look at the highest:
PS3:
Gran Tursimo 5 - 11.95m
Uncharted 3 - 9.3m
The Last of Us - 8.15m
Uncharted 2 - 6.74m
LittleBigPlanet - 5.85m
Top 5 Average: 8.39m
PS4:
Uncharted 4 - 16.25m
Spiderman - 12-14m (Estimate, last confirmed is 9m as of November 25th 2018 just it's first 7 weeks.)
The Last of Us Remastered - 11.78m
God of War - 11m+
Horizon Zero Dawn - 10m+
Top 5 Average: 12.4m
That shows incredible growth, especially with sales not done for these ps4 titles and TLOU 2 on the way.
A first party PlayStation game selling 10m+ was mostly unheard of, yet this generation will end with at least 6.
