How to choose between two guys?

well there's two guys i really like but i have to choose cause it's wrong to hit on two guys at the same time. i know them for about the same time like 3 years or so. number 1 is sweet and kind and all but is an only child and doesn't get why i have to babysit my sister so much and always complains he has total freedom and i don't. He is also kind of a loner he has 3 friends total. the guy number 2 is sweet and caring, and out going but he takes every thing personally and he kinda acts like a child some time and he often embarrassed me in front of my friend by saying and doing dumb childish stuff. but i still like them both even with there default.