I liked the Second movie the best. =D And I simply adore Lugia's theme. =O
The Pikachu Short that came with Pokemon 2000 : The power of one, was also one of the best, including the Bellosom dance and no annoying narrator or Pokedex voice. >D
The 3th movie has a special meaning to me, 'cause it arrived at some cinema in the world (I think America) on my b-day. XD
And Pokemon 4 was the only movie I saw in theaters. <3
And it has Suicune, who was at that point my favourite Pokemon, in it. (^^)V
The Latios and Latias movie (5) was really nice as well. It was one of the Pokemon movies that had a bad ending. The Jirachi Movie (6) was not the greatest, but still very nice to watch. Having Flygon, Absol and Salamence in the same movie is great. =D
Deoxys (7) was something else. Not somewhere in a semi-deserted place, but in a high-tech city. It was quite good. Awesome Pokemon as the main Pokemon (Rayquaza and Deoxys, Plusle and Minun). The Eighth movie was awesome. Not only because of the Pokemon, but also because of the Story line. Lucario is a great Pokemon. =3
Speaking of Rayquaza... He's in Brawl <3 As a boss though, but hey, he looks awesome in it.~