Animus

[Yu Kanda]

My personal ideas when i read your list :

Obviously D-gray man- many episodes, interesting story / characters and lots of action.

Attack on titan

Tokyo ghoul

If you can get through the horrible first arc , katekyo hitman reborn is also pretty good.

I also vey much enjoyed hajime no ippo, even though i have nothing that pulls me to boxing...the humor and action are amazing...gets you pumped up!