Presently reading,
Mahou Sensei Negima [this one is the best, an all-rounder in every aspect whether it be action, cliff-hangers, comedy, etc]
Fairy Tail [pretty good]
Naruto [the story is quite good and the present arc is going smoothly]
Bleach [a good story, but getting stretched a lot]
Air Gear [good]
Freezing [above average]
Onihime VS [average]
The Legend Of Maian [above average]
Gakuen Alice [good story, but i haven't followed it after ch 136]
Also there are a lot of other manga i am reading right now, but they aren't so good to be mentioned here.