Blair Witch and Elden Ring are new. Scarlett reveal, X Cloud, massive overhaul to Game Pass (huge win for PC gamers) on top of updates of coming known first party titles and in the absence of Sony they got everything else too. Who 'won' is just subjective and more what you're into, but Microsoft's show had arguably quite a lot more substance.I actually had it the other way round ie. pretty flat from MS and marginally better by Bethesda. Did we get even one thing we didn't already know about at the MS conference? Blair Witch I guess? At least Bethesda had 2 pretty cool looking new IP in Ghostwire and Deathloop. Plus a proper gameplay demo for Doom, looks insane.
E3 this year has been really lean and mostly uninspiring in general though. Last year's was excellent, and as mentioned by others this year is a holding pattern, just treading water so to speak and I expect next year's to be huge as Sony should be back to trade blows with Microsoft over launch and first year titles for the next gen consoles.