God of War impressed me the most. Would have been a bigger surprise if the leaks didn't exist. but those are the pitfalls of going on the internet, lol. I liked that Kratos wasn't the same one dimensional character. He's still badass, but the father role suited him.
I would have picked The Last Guardian if more of it was shown. Before moving to another state, I left my PS4 with my brother and nephew. It's their's for all intents and purposes even though my account is still on it. The Last Guardian will be the game to make me buy another PS4 (Neo, this time). After all, Ico and Shadow of The Colossus are two of my favorite games ever (Ico being number one and SotC trading off between three or four depending on my mood).
Despite people giving Nintendo crap for not beefing up their hardware, Zelda was the most visually impressive game of the show for me. The game's graphics and performance will only get better on the NX, but even in it's current state, it was inspiring. Probably due to the law of diminishing returns, even though PS4 games are way better looking, tech-wise, art direction goes a longer way to impress me. The second most visually impressive game for me was Gravity Rush 2.