John Williams epic musical score.

The intense and fast-paced lightsaber duels.

Ewan McGregor as Obi-Wan Kenobi.

The magnificent backdrop settings (movie-wise, yes it's too much CGI, but a still image of Coruscant or Naboo would make beautiful wallpaper for my desk top PC.)

Having characters from original trilogy in the prequels (Obi-Wan counts but he gets his own spot on my list.)

Liam Neeson

The podrace from "The Phantom Menace"

The first 24 minutes of "Revenge of the Sith."

*puts deflector shields up for last three things*

R2-D2 flying

Hayden Christensen as Anakin Skywalker (blame his poor performance on bad directing)

Jar-Jar Binks (guilty pleasure)