AOTC: I enjoyed it. I realized even then that it wasn't a great movie or anything, but the action/combat scenes had more of a SW feel than those in TPM. It felt more like a SW movie than TPM did. I don't know what my reaction would have been if TPM never existed and AOTC was Episode I. I suppose I'll never know.
ROTS: Pretty good, but underwhelming. All in all, though, my OT:SE viewings were much more fun.
BTW Mielr, I could be wrong, but I recall reading something which said that Amidala's voice was done by another actress.