Well, arranged marriage to me just seems like you don't have as much control over the whole thing. It's not like you have full control over who you get to pick as your (potential) spouse. With a marriage that results from two people falling in love naturally, the people in control are the couple. But with a pre-arranged thing, there's not only a third party influence but also pressure from the said party to a certain degree. Personally, I'm just not comfortable with that. I want to spend my life with someone who I've chosen, not who someone else has chosen for me.
I don't believe in marriage. I think marriages are bad ideas. Living together is more hassle free, at least where I live. Anyway, 2/3 of marriages here end in divorce. Now, if it is unavoidable, I'd pick love marriage, not arranged ones. I may have completely misunderstood the cultural thing about arranged marriages, but my opinion is that it is something of a losers solution. I'm really ignorant about it, so, don't take my opinion too seriously. Even if a love marriage fails 6 months later, hey, at least there is a change the parts involved experienced passion, fire. I'd rather try things for myself and fail then have somebody else decide them for me. I live with the consequences of all of my foolish decisions. It's my life, after all. Anyway, whatever works for you. I just wish you to be happy.