Is circumcision better that non-circumcision?
No it is not. the foreskin is an important part of the penis, its function and it ability to create sexual pleasure. removing it will lead to to desensitisation of the glans as well as the removal of the pleasure sensors in the foreskin. There is no genuine medical reasoning for circumcision.
No. The practice of circumcision is done for both medical and religious reasons. Medically speaking, circumcision provides only a hygeinic benefit. An uncircumcised penis operates just as well as a circumcised one. Most religions do not require circumcision. Since there are over 35000 forms of Christianity and many other religions, it is better to seek answers about a particular religion's dogma when considering circumcision.