Go ask the question on most Star Wars websites/forums out there and i guarantee most people will put either of the two on the bottom of their lists, most people who even arent fans will more than likely put them at the bottom of their lists.
The thing about Star Wars is this, its much the same as most forms of media nowadays, theres people who put the fancy graphics and stuff before substance, and the others that put Story and Substance before fancy flips and such. Most Star Wars fans that were around for the Originals will put the OT before the PT, possibly having RotS above RotJ. Most people that had Episode 1 as their introdution to the series will say the PT is better than the OT, because the effects in the OT were crap, and the Saber battles were too boring. Now im not speaking for all fans here, as there are exceptions, but the majority see it like this.
Simplest Terms, People who saw the OT before the PT think OT >>> PT, people who were introduced via PT (Usually people below 15) will say PT >>> OT