Verified answer

Digimon Adventure (Series 1)

Digimon Adventure 02 (Series 2)

Digimon Tamers (Series 3)

Digimon Frontier (Series 4)

Digimon Savers/Data Squad (Series 5)

Digimon Xros Wars/Fusion (Series 6)

Digimon Adventure is the best. Digimon Adventure 02 is also really good! Digimon Tamers is ok, all the others after that aren't that good.

List of the seasons so as: Digimon adventure (Season One) Digimon adventure 02 (Season Two) Digimon Tamers (Season Three) Digimon Frontier (Season 4) Digimon Savers data Squad (Season five)

I disagree, frontier is the best, just because they morph into the digimon :D also the digimon in it look cool. Also tamers is good, because it is set mostly in the real world.