"Best" is relative. "Best" overall regardless of price or best bang for your buck.
The best cheapo camera that I like is made by Stealth and runs about $60 a unit, runs on 8 AA batteries (I use rechargeables) and takes functional (not beautiful) pictures.
http://www.amazon.com/Stealth-Cam-STC-P12-Megapixel-Scouting/dp/B00HMN7LDC/ref=sr_1_2?ie=UTF8&qid=1463064399&sr=8-2&keywords=Stealth+Cam+STC-P12+6.0+Megapixel+Digital+Scouting+Camera%2C+Tree+Bark (sorry, this won't hyper link for some reason, but copy and paste and it will get you there)
For about double, a very good option is the Browning Strike Force. Most people love these.http://www.amazon.com/Browning-Strike-Fo...ng+strike+force
Personally, game cameras seem to be really hit or miss. I have run some cheapo Moultries that lasted 6 years and other models by Moultrie that didn't run 6 months. I figure that on average, I get 2-3 years out of my cameras before they peter out, hence why I tend not to be expensive ones. I have had 2 $300 game cameras that went less than 18 months, just long enough to be well out of warranty. I am currently using the Stealths above and am happy with them, but like I said, the images are not amazing, but functional. Go with the Brownings if you want beautiful images.