Here's a side by side comparison of three in that price range from B&H Photo and Video: http://www.bhphotovideo.com/c/compare/Canon_HF_R500_vs_...
Personally, between the three I would go with the Canon VIXIA HF R500 Full HD Camcorder. It has both a mic input and headphone jack. You can read the customer reviews for each camera if that will help you make a decision.