1. Single Player Story Driven focused games
As a pure single player console gamer, this is what I care about the most followed by the genre of these games. Since last generation and even more so this generation, Sony has catered and appealed to me the most by far out of any other hardware manufacturer and is second publisher wise only behind my beloved Ubisoft. They take chances, create new IP's and stay focused on what matters the most - GAMES.
2. First Party Studios / Exclusives
When you own studios like Naughty Dog, SSM, SP and Guerrilla among others, chances are that you're going to have one hell of an exclusive lineup of excellent games.
3. Second/Third Party Exclusives
Add in second party exclusives like Insomniac's R&C remake or the upcoming Spider Man and then third party exclusives like Nier Automata from Square Enix or Yakuza from Sega among many others and you pretty much have a total and complete package of genres and games to choose from.
4. PSN/Indie Exclusives
From Alienation to Salt and Sanctuary to everything else in between, Sony has nailed it this generation. For this and above two reasons, they started it with PlayStation 3 for me personally and have if anything, doubled it.
5. The Controller
Thankfully, the controller has stayed basically the same for all four consoles which is a great thing. The Controller is excellent and im happy that they keep the design the same as they should.
6. The User Interface
It's clean, simple and easy to navigate to find what you want. Adding folders a year or so ago made it even better. If they would allow me to put those two or three apps that can't be put in a folder, put in a folder, I wouldn't have a single complaint whatsoever. And even now, it's near perfect for me.
7. Third Party exclusive deals
This usually has to do with exclusive or timed exclusive content which is great for me because when it's a game I care about and am going to buy, having an extra incentive doesn't hurt whatsoever. I remember Assassin's Creed IV: Black Flag having three missions be exclusive to the PlayStation brand where you played with Aveline which was connected to the Vita Liberation. While this was only an hour or so of content, I enjoyed it, made me more hyped and pumped to pre-order the game plus actually led me to buying Liberation HD on PS3. So when there's extra content for a game that im buying anyway for the console, it's like a cherry on top of a fudge sundae.
8. Third Party marketing deals for FPS
This is huge for me because they have marketing deals with Activision/EA and others for the FPS genre, this allows Sony to stay away from my least favorite genre and concentrate on what they do best which is have their studios create and develop single player story based games. Not having to worry about seeing one or two FPS from Sony when they have that genre pretty much covered via marketing deals or just multi-platform games in general is a added positive to an already excellent list of positives for me. Imagine if Guerrilla Games was still working on the stagnant Killzone franchise. UGH. Instead, boom, a new IP, awesome open world single player story driven game with excellent visuals, audio and gameplay that will be a franchise for Sony going into PlayStation 5. As a gamer such as myself, you can't ask for anything more.
9. No Backwards Compatibility
Yeah, you read that correctly. For me, this is huge. When I look at Sony's main competition in Microsoft and I watch their E3 2017 conference and the biggest cheer and applause they get is from a 15 year old game in Crimson Skies, yeah, I know I have the right console as my primary and why I stick with Sony and their PlayStation brand. Classic or not, I never ever buy a brand new console to play games that are literally decades old. If I didn't play them back then, im sure as hell not going to play them now. I also don't want to see Sony waste any of their money, time and resources into this not when that could come at the expense of new IP's and future sequels. No fucking way. Let all of this stay where it belongs - in the past. For those who really want it, you have PlayStation NOW which yes, is a fucking joke in of itself but seriously, this is why you should always keep your hardware especially if past generation games are that important to you. Watching Phil Spencer talk more about 360/Xbox games than he can talk about One games is just sad and depressing especially when you look at how great Xbox 360 was. Backwards Compatibility is a great consumer friendly move but that's it and when you look at how great PS4 has sold compared to Xbox One, it's obvious that this is minor if that in regards to making a decision as to what console to buy. Plus, I care about the present and future. Not the past. Past is history.
10. No promoting apps and services
While Sony has all the same crap that Microsoft has, they don't go nuts with it and shove it down my throat all the time. Seriously, im a gamer and don't give a shit who has Netflix or whatever. Very happy that this is in the background where it should be.
That's pretty much why I stay with Sony and PlayStation. In the end, they give me what I want the most - SINGLE PLAYER STORY DRIVEN GAMES. In the end, the power of your console means nothing if you don't have excellent exclusive games backing it up because that is what truly separates the consoles from each other. Until Sony fails me personally in this regard, I'll always own a PlayStation.