There are many things different about asexual and sexual reproduction. One thing's for sure is that asexual reproduction only involves one parent and sexual reproduction involves two parents. Asexual reproduction is not common with humans. It is used with certain animals. Sexual reproduction is how human babies are born. It usually involves sexual intercourse with the male and female. From sexual reproduction, the offspring inherits traits from both parents.
I don't really think one method is better than the other because both methods are used different depending on what or who you are. For example, if you are an human, I'm pretty sure sexual reproduction is the only possible way. You can't really produce a baby on your own; that would be a little too awkward. Take a look at the chart to view the differences and similarities between the two types of reproduction.