The Sony Exclusives
Sony is in a similar position to Nintendo in that it has several games that with tenuous release dates. The Last of Us Part II is shaping up to be the biggest release of the year, even though it doesn't have a solid release date yet. There have been hints from people within the industry that the game is due to come out this year, and if it does, it'll undoubtedly become another phenomenon.
In terms of confirmed PlayStation 4 exclusives that are due this year, there is Concrete Genie, Days Gone, Dreams, Judgement, and MediEvil. These are all amazing looking games, with Dreams looking like it's going to be incredible, though they don't have the mass-market appeal or name value to be system sellers.
There are also games like Death Stranding and Ghost of Tsushima, which don't have specific dates but seem as if they are close enough in development that they could be released this year. Death Stranding is shaping up to be a huge hit for the PlayStation 4, but there are still too many unanswered questions about the game to say for sure whether it will find an audience or not.
The Microsoft Exclusives
There are some incredible games coming to the Xbox One in 2019 as well, many of which will also release on PC through Microsoft's Play Anywhere initiative. The Xbox One is receiving Battletoads, Crackdown 3, Cuphead: The Delicious Last Course, Gears 5, Ori and the Will of the Wisps, and Phoenix Point in 2019; it's unlikely, though, that Halo Infinite will hit store shelves this year.
Some people may consider the fact that Microsoft releases Xbox One exclusives on PC to be a mistake, as companies like Nintendo and Sony tend to release console-only exclusives, such as Bloodborne, God of War, Super Mario Odyssey, and Super Smash Bros. Ultimate. But the fact that Microsoft, which people should remember who also owns the Windows operating system, releases Xbox exclusive games on other platforms only increases their presence, beyond just a first-party publisher.
With Microsoft purchasing developer after developer over the past year, it seems they have much more planned for the future than they are letting on. So while they're currently behind the Switch and PlayStation 4 with regards to a steady stream of exclusive games, all is not lost.
Who Will Win The 2019 Exclusives War?
The current console generation will be defined in the future by the exclusives that appeared on each system, which is partly why Sony gained so much ground over Microsoft despite how similar the PlayStation 4 and Xbox One are in terms of hardware.
Nintendo has a stellar line-up of games, but only in theory, as there are too many games that are still questionable at this point. We haven't seen enough of Animal Crossing or the new Pokémon games to say that they will definitely be released this year, and the recent issues with Metroid Prime 4 have proven that Nintendo has no problem canning a game or delaying it if they don't think it's up to snuff.
The current line-up of confirmed Nintendo Switch games for 2019 is impressive, but none of them are system sellers in the same way that The Legend of Zelda: Breath of the Wild or Super Smash Bros. Ultimate were. If Nintendo manages to get Animal Crossing and the next generation of Pokémon games out by Christmas, then the year is theirs, but if they're relying on the games that we know for sure are coming out, then they will be left in the dust by Microsoft and Sony.