I didn't find the fight with Aquaman to be insulting to Wonder Woman. She gave him a good fight. It's not like he tossed her around like a rag doll plus he was being controlled and he had his trident in hand which probably increases his abilities somewhat. Also these are the Earth 2 versions of the characters which are noticeably different from the main earth counterparts.
All in all, I really enjoyed the movie. The voices and action sequences were great. The surprise with E2 Superman was nice. I'm glad that neither he nor Diana were able to fly which kept things close to their roots. It would have been nice if a Wonder Woman villain was at the center of the plot(i.e. Duke or Deception or Dr. Psycho).