i like more the song if the amv is beautiful too that fit to the song.
for me, the anime that have most good amv's is naruto and
shippuden.they really think about the concept the timing and very creative.
i like most all of it and my favorite ones are
alive
namikaze satellite (even though i got scared of their faces)
go!
haruka kanata
pinocchio (i really like the color, so bright),
Seishun Kyousoukyoku
soba ni iru kara (the first time i heard this, i almost cry and felt that friendship is a great thing)
closer (especially the time when shikamaru is shown last in line-up.it really means that they give importance of the
other characters)
for you
heroes com back
michi~to you all
nagareboshi
i also like rave and ouran's opening song
ranma's OMOIDE GA IPPAI
bleach - houki boushi, my pace, happy people(even though it's just pictures)
cooking master boy - kimi sae ireba, mineral
cyborg kuro-chan - guru guru kuro-chan
gintama - asa answer (it feels like refreshing whenever i listen to this)
hunetr x hunter - ohayou (feels like morning)
tsubasa chronicle - loop
i can't remember the rest.