Quick multiplayer question!

Hey guys just wanted to get some input and see what you think

A buddy and I want to play this game together, but the problem is he has the PS4 version and I got the PC version, now which one would be the better of the 2 to play on?

Now we both have PS4s and PC's so it's just deciding on the platform. Also I would like to be able to play the game even if he isn't and vice versa for him I assume

Thanks in advance, Zipzipshure