I was a PC player that was recently converted to console. I always believe that PC is always the better platform IF you have the required hardware. I, personally, would never play on a laptop, even though it might be a gaming laptop. Therefore, I don’t feel like I deserve to say if your hardware is good enough or not.
At the end of the day, I really don’t give a hoot about which platform looks better. I only care which platform runs it better. And in that case, the PC always wins if you have the right hardware. Otherwise, I would choose PS4.
The real problem is with your brother. Will he let you use his PS4 to play the game. Then again, you can always buy a PS4.