TFA is derivative of A New HopE
Derivative? You are far too kind. Its an exact copy, from the villian being vaders grandson to the mcguffin of a planet sized weapon. Whats worse, not only is it an attempt to copy an original and inspired movie, it does it clumsily and in such a sloppy way one is driven to madness trying to find any redeming quality.
My honest assesment, as someone who grew up loving the original and empire, is that the entire franchise has reeked since the ewoks defeated the empire. There were a few bright moments scattered in the prequals (the light saber fight with maul, anikin and obiwans duel on mustafar) but one has to physically search for highlights amongst the floating dung soup to find them. Its not worth the effort.