So what was your favorite moments in Episode II: Attack of the Clones
For me, it was the entire ending (the last 20 minutes or so) of the movie.

That's my favorite part out of an otherwise not-so-good movie.
One of the best moments was when Anakin jumps from the cliff and sneaks into the Tusken camp, finds his mother and then begins his fall to the Dark side by killing the Tusken Raiders. I also like the scene when Obi-Wan is fighting Jango Fett.

Tough choice... the Yoda/Dooku duel was cool, so was the battle of Geonosis but I think I'll go with Jango Fett vs Obi Wan. You got Boba gunning with Slave I, Jango using every weapon at his disposal and two blaster pistols. All while Obi Wan struggles to maintain his edge (in the rain, none the less).
The arrival of Clone army is an awesome along with the Battle of Geonosis. Also the duel between Obi Wan and Jango on the landing platform was pretty cool.