People here really do have drastically different personal rating systems.
I personally would give TFA a 6/10, but whereas that’s a bad rating for someone here, for me that’s a pretty decent rating. Citizen Kane is a 10/10 for me, and something like the Avengers; dumb, but not necessarily stupid and without a plot, and definitely entertaining and funny, is a 5/10.
On a scale from 1-10; 10 being on the level of a Kubrick or Orson Welles film, and 1 being more of an Ed Wood type of film where it barely qualifies as a film, I’d give the 7 SW films these ratings:
ESB & ANH - 8/10
ROTJ - 7/10
TFA - 6/10
TPM, AOTC & ROTS - 3-4/10
(Apart from a fan-edit of TPM, I haven’t seen the PT in nearly ten years so I’m not too sure how I’d rate them as movies. Also I’d probably rate ESB as an 85 if I was following the system mentioned in the first post on this thread.)