One big upside to the PC is free online, and a wealth of exclusives (mostly smaller, niche titles, but good games in their own right).
While that's good the free games and extra discounts I get for ps plus sales more then makes up for it. The general sales are awesome on Playstation now too and software is super cheap if you're on a budget.
There are also way too many exclusives that either never come to PC or take years and as a gamer that makes ps4 a must for me.
Both are good platforms though and ultimately you're better off having both a pc and a ps4 like me.