i would have to say fairy tail and naruto shippuden both have great fighting scenes:)
It's a tie between Hunter x Hunter (2011) and OnePiece for me.
Michiko to Hatchin had some good action in it
How about Attack on Titan (Shingeki no Kyoujin)? I've just finish the anime, oh man, those action with 3D maneuver device just so awesome! I'm in love with Mikasa and Levi...
The most action packed anime i have seen that i can think of right now is no doubt attack on titan/shingeki no kyojin.
Ikki Tousen, attack on titen, claymore, Guilty Crown, Kiba, Kenichi The Mightiest Disciple, all have a lot of action
DBZ for me :D
MSG 00 Is a personal favourite but Fate stay night had some really awesome fights too, oh and lets not forget the Samurai showdown anime!
Attack On Titan :D
maybe Devil May Cry
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