OK, I'll play:
NOTE - these ratings do NOT refer to the special editions.
STAR WARS
Cinematography: 10/10 - Editing may be the best I've ever seen.
Plot: 9/10 - Very clear and some surprises, too.
Acting: 10/10 - Guiness and Cushing, case closed.
Dialogue: 10/10 - you can't beat the writing for C3P0 and R2D2.
Special Effects: 10/10 - Groudbreaking, believable. Everything looks real.
Score: 9/10 - Only not a "10" because ESB was at least as good.
total = 58/60
ESB
Cinematography: 10/10 - Spectacular ideas fully realized.
Plot: 8/10 - A bit contrived. Yoda theme, strong. Vader as Luke's father, weak.
Acting: 8/10 - Yoda steals the show - others less impressive than in SW.
Dialogue: 9/10 - Without Yoda this would be a 7 or 8.
Special Effects: 9/10 - Fantastic, but a little less believable than SW.
Score: 10/10 - Amazingly, improves on SW.
total = 54/60
ROTJ
Cinematography: 10/10 - Still impresses.
Plot: 9/10 - The emperor provides the backbone of a stronger plot than ESB.
Acting: 8/10 - The emperor steals the show - others are coasting.
Dialogue: 9/10 - Vader and the emperor have some really great lines.
Special Effects: 9/10 - Fantastic, but going a little overboard.
Score: 7/10 - Loses its way with the Ewoks - badly.
total = 52/60
TPM
Cinematography: 5/10 - Ugh, repetitive pattern scene after scene.
Plot: 5/10 - a mess.
Acting: 7/10 - thankfully understated. Padme unconvincing.
Dialogue: 4/10 - Not a single memorable line. And then there's Jar Jar...
Special Effects: 5/10 - a mess, rarely believeable.
Score: 9/10 - The choral segment in the final sabre battle is genius.
total = 35/60
AOTC
Cinematography: 3/10 - Double ugh. At least one-third needs to be cut out.
Plot: 3/10 - incoherent.
Acting: 3/10 - embarrassing. Only Boba Fett's father is believable.
Dialogue: 0/10 - Maybe the worst I've ever heard.
Special Effects: 7/10 - Some impressive achievements. And some crap.
Score: 5/10 - Nothing to write home about, but not bad.
total = 21/60
ROTS
Cinematography: 2/10 - Triple ugh.
Plot: 1/10 - it just keeps getting worse.
Acting: 4/10 - some decent moments, but mostly cringeworthy.
Dialogue: 1/10 - Maybe the second-worst I've ever heard.
Special Effects: 5/10 - Some impressive achievements. And a LOT of crap.
Score: 5/10 - Nothing to write home about, but not bad.
total = 18/60