Instead of those nice cameras, look at the nicer Nikon D5300. If you can't afford to buy it new, look into a USED or refurbished D5300 and save money. It has Autofocus, 24-MP sensor and an articulating rear monitor plus many other features, functions and options you'll enjoy using. Go into a camera shop and hold it in your hands, peer through the viewfinder, turn it on and try the Autofocus function and you're sure to be pleased with it. The real trick is to buy only from well-known reputable places like B&H or Adorama in NYC or KEH.com on the Internet... places that stand by their sales and honor warranties. Let me give you something to think about, it's better to pay a few extra dollars and not have to worry about your purchase. Good luck and best wishes.
EDITED: For BEST results in your photo-taking experiences, READ the camera's Instructions Manual so you can learn details about the features, functions and options the camera offers, and where to find them, how to use them and WHY you use them, plus many tips on how to avoid and how to overcome difficult lighting situations.