I always find that out of the 3 systems, Software sales always seems to be lower on the PS4, Considering its User base compared to Xbox and Nintendo, it should be selling heaps more content and games but instead most Xbox and Sony games tend to be on par with each other, while Nintendo games are in another league of there own. Could be based off who has the more casual gamers I guess.
As for me, I don't buy UbiSoft games anymore. The last one was ZombiU which surprisingly I enjoyed a lot.