To refresh of your memories, we would like to see these two ORIGINAL Clannad OPs (1 for each season) :
Season 2. (This is the irrelevant one – considering the music of the OP. However, the video is still somewhat related)
AND NOW. To show you a compilation of what the others (not me) have done with the Clannad OP Megumeru ~cuckool mix 2007~ :
The Melancholy of Haruhi Suzumiya (arguably the best of ’em all)
Shakugan no Shana
NOW, you decide. n_n How crazy fans can get?