Exclusives are often said to be the decisive factor in the success or failure of a system. I included systems from this generation and PC as well. PC can grant access to many games in legal ways, and some of them can be very old so I found it relevant to include PC for this reason, even though there aren't many"AAA exclusive" right now. PS4 has a decent number of exclusive AAA games and those i favor of Xbox One will praise quality over quantity. Finally, Switch has first party games.