The Kirby trailer had a distinctly un-Kirby feel to it, esp. with regards to the music. I am disappointed, and fearful.
The Donkey Kong Country trailer looked like it had a bit too much random nonsense going on in the background. I am fearful.
The Zelda presentation (dear Heaven, that was painful to watch) failed to mention anything about story, failed to give a feel of the game, and did not showcase any music. I am disappointed, fearful, and angry.
The Goldeneye trailer was interestingKA-BOOM EXPLOSIONS!!!!!111!. I'll wait and see.
The Portal trailer was short, awesome, amusing, and gave a feel for the game. I am hopeful.