I just found a new reader that basically is like aldiko or moon-reader with great PDF support.
It has all the pdf-features that aldiko lacks (zoom-level fixing, margin-cutting, sketches, notes) and works great on my Tab.
It is quite expensive (10€) but if you enjoy books on your android-device this is by far the most advanced reader if you need pdf-support!
I cannot comment on the qualities regarding epubs and such since all my books are in pdf, but maybe someone else can.
http://www.mantano.com/en/products/android-reader/