The Wykydtron said:
Persona 4, simply because Igor's voice is so badass... The actual pre title screen intro has the same problem most anime openings have i.e. it's spoilerific
Plus the intro gets way more awesome when you play through again
Ninja. I was about to complain about this when I saw your post. Then I saw several more people post the Persona 4 intro. I guess they love spoilers. It pissed me off because, although I accidentally spoiled the true murderer for myself, it was the game's own freaking intro that spoiled that I would fight Shadow Teddie! I totally wouldn't have expected him to have a shadow if the game hadn't told me itself before hand. The clip they showed even included the words "Shadow Teddie," just in case the visual spoiler wasn't enough. The intro song was also, oddly enough, the only song in the game that I didn't like, so P4's intro fails on every count for me.
For an intro I did like, Half-Life 2. There isn't really an intro cinematic per say, but you aren't in control when the G-Man is talking to you at the very start. Just his voice and the weird imagery and then *poof* you're on a tram in a dystopian city. Great.