The other difference about corns is they are poop machines and the left overs are runnier (I don't know if thats really a word) and smell is stronger. You will be cleaning alot more with corn around. Like has been said the corns are more active and will be out during the day for viewing. They are pretty inquisitive and will check out everything in their cages and use all of their cage. They are wiggle a lot more. Corns are more apt to escape if you give them the opportunity (they can move pretty fast) and are generally more aggressive feeding so I'm a little more cautious with them when I take them out. Balls tend to stay in their hides a majority of the time (unless they are hungry) and aren't active like corns during the day. They can be picky eaters and go off feed for no apparent reason. Some like the calmness of the ball pythons and they are easier to handle. I also like the thickness of ball pythons compared to the more slender corns. Overall I like them both and depending on my mood could go either way at any time.