It's natural for people to be initially attracted to cute/hot people at first. IF the person is ugly, no offense, but your not going to be attracted to them :P . The trick is to see BEYOND that, and get to know that person better. Talk to the person, hang out, find out if you have something in common. Yes, you can "fall in love" with someone solely on looks, but it never last beyond making out and sex. However, if you DO start talking and getting to know these girls better. MAybe you can find tha one you can love even on the telephone
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I wouldn't think much about this phase. EVERYbody goes though it. just remember to keep talking to the cute girls.