If this was a question of my three most anticipated games that were present, then it would be Final Fantasy VII: Remake, DOOM: Eternal, and Ori and the Will of the Wisps. However, I'm interpreting the question as what was the best and worst presented games. That said, I'm disqualifying trailers only. So while CyberPunk's entire presentation was exciting, we're not going to see this week's demo for another two months.
For my third favorite presentation, I liked how Star Wars Jedi: Fallen Order was a solid 15 minutes of just showing the game. I'm very intrigued by its combat, and hearing parallels to KOTOR in regards to picking which planets you want to go to and when is highly appealing.
However. @^&# spiders.
Second for me is Watch Dogs Legion. I'm not a Watch Dogs fan, and won't be picking up this game, but I think Ubisoft did a great job showing how you can recruit all the different characters of the world. And yes, Helen was the strongest moment. EASILY Ubisoft's high point of their conference.
Number one, no surprise, Final Fantasy VII: Remake. 20 minutes of a deep dive on combat, characters, environment, story, a dedicated segment to a boss fight... Loved it.
As for the three games I came away irked with, each had their own vastly different reasons why I was immensely bothered.
The number three presentation I couldn't stand was Just Dance. Because it's been the same thing. Year, after year, aaaaafter yeeeaaarr, aaaaaaaafffffftter yyyyeeeeeaaaarrrrrr.
Number two actually is one of my top five overall most anticipated games: Gears 5. I'm a die-hard fan, and the way The Coalition decided to show this year was just baffling to me. The weird faces trailer was just an off-tone piece that felt out place. As was the trailer for Escape. The mode itself isn't for me as it requires other people, so cutting to stage theatrics and gimmicks have me concerned.
Despite my disappointment with Gears, NOTHING got on my nerves as much as The Elder Scrolls Online, and more upsetting is the fact I'm not aggravated at the game itself. The constant "WWWWOOOOOOOOOOOO" every half sentence was about the most frustrated I've ever felt during ANY E3 press conference. And I've seen some bad ones.