Sony’s is pretty much guaranteed to be awesome, as is Nintendo’s. I guess that leaves MS, since this is likely their last E3 to try and prove a point as to why Xbox is even still around.

Microsoft NEEDs to have a good one (with a roadmap, showing whats happending in 2019,2020).
Nintendo COULD use a good E3, but people know Pokemon, Metroid, Smash, FireEmblem ect will come somepoint.
Sony Basically dont need to do anything at E3 and it ll still have a great year.

Microsoft > Nintendo > Sony  (in terms of dependancy of this E3)

Even Xbox guys are saying this.... saying its make or break time, and they want a roadmap (show things upto 2year away).

You expect them to just coast by, on 3rd party for 2 years?
After Age of Empire, Sea of Theives, State of Decay 2,.... and a 2017 that was barren of exclusives.
They need a AAA smash hit... atleast 1st party hit, within the next 2 years, preferably more.

People are loseing faith in the brand, if they dont do anything to fix it, theres people that might not want to invest in a xbox 2.
You cant have 4 "bad" years leading up to a new console, and expect peopel to jump onboard.

Clearly MS, they have alot to prove if they want there new direction of there gaming service and Game Pass to be successful.

I am expecting some old Rare IP love. Hopefully Joanna Dark is a real thing followed by Banjo Kazooie etc.

Definitely Nintendo. Their income comes from first party sales, if they don't release games they don't make money.

Sony is pretty safe, it doesn't really matter what they do for the rest of this generation.

Microsoft can help themselves to some extent, but it's a little late for miracles, regardless of their E3 showing Xbox One's final lifetime sales aren't going to change that much.

Agreed, the 1st parties help give a console its identity.

MS has great 3rd party support and that's most important. But its 1st parties that make the console appealing for its own reasons. If they can't prevent people from buying a PS4, they can at least appeal to people who may be open to owning multiple consoles.

Microsoft obviously. Nintendo and Sony can hurt themselves by having a bad E3 but the damage won't be that significant. PS4 and Switch will continue to sell just fine. For MS, it looks like Xbox One is already coming close to the line when it will be on life support. If they fail this E3 sales can drop significantly to the point of no return. It will be hard to see how they will manage to continue with this console up to 2020-2021 as they intend in this case.

Nintendo beacuse they mostly only focus on games released the next 6-18 months... unlike Sony and MS who announce games 3-4 years ahead pretty much every E3.

I mean, didn't Nintendo abandon the Wii U? Or were they still announcing a whole slew of brand new titles for the Wii U while they were already designing the Switch?