I have seen this question in many communities and all the time posted by some girl. Why?
Actually these girls want to choose their life partners themselves because they are self dependent they take all decisions themselves but the way parents have given them the teachings they are always in doubt so they always try to reassure themselves that arrange marriage is better.
I think neither love marriage nor arrange marriage is good. There should be another type of marriage that is "sync marriage" marry someone whom you know and with whom you feel the most comfortable. Love can be and illusion created by attraction or infatuation. Arrange marriage is a lottery. So! Both can fail while understanding can never fail.