Okay, I'm not saying that the prequels were fantastic movies or anything, but what I'm saying is that - as Lord_Zed put it - there was the intention and effort to tell a good story about the rise of Darth Vader. And he did try to do that, and at a fundamental level, the prequel movies do succeed in doing this. I'm not saying that Lucas is a great director -- if you ask most people their favourite Star Wars films are typically either The Empire Strikes Back or Return of the Jedi, the two films that Lucas
didn't direct! But I'm saying that despite his failings, Lucas at least makes an
effort to tell a story -- it's not the best effort -- but it's an effort nonetheless. If you strip away all the fancy bells and whistles explosions, special effects etc., the basic story still stands... for better or worse. You strip away the bells and whistles from Transformers, and what do you have?
To put it simply, if trilogies were toys...
+ Star Wars: The Original Trilogy - this would be a damn fantastic toy. Great value for money, awesome articulation, clever intuitive engineering/transformation, non-intrusive gimmicks... just all round awesomeness. e.g. most Classicsverse figures
+ Star Wars: The Prequel Trilogy - it's an okay toy, but not fantastic. Transforms from robot to alt mode well enough... one or both modes looks kinda odd. You'd rather not pay full price for it. e.g. most Movieverse figures (especially larger/boxed ones)
+ Michael Bay's TF Trilogy - loaded with awesome gimmicks that look really impressive on the shelf with a "Try Me!" feature. You buy this toy and bring it home -- for a while the gimmick is actually pretty fun to play with. Then you realise that the rest of the toy is kinda lacking... e.g. Combiner Class Devastator (that was a
one month wonder ;p (and yeah, I got roped in too - glad I got the toy on sale though (still feel ripped off but)).
The Star Wars prequels may have been a less than ideal expansion of the Star Wars universe, but the Transformers Trilogy (esp parts 2 and 3) really felt more like the kind of stories you made up when playing with your toys as a child with your friends.
"Wop wop wop wop wop, here comes Blackout and - BOOOOOM! - he's attacking the humans!"
"Fight back! A-ha-ha-ha-ha-ha-ha-ha-ha-ha!! (<--machine gun noise)"
"Ping! Ping! Wa ha ha! Your weapons are useless! KABOOOM!"
etc.