First of all, define love?! what is love means in your dictionary? I think it's not abou taboo to fall in love with AV performers, but how can you fall in love to someone by watching her fucked. Maybe we feel the atraction, lust for her, sometime daydreaming about making love with her, or we like the way she smile or the way she talk, maybe. But, Love? I think I will never fall in love with AV idols. Except, maybe one day when I meet one of them in real life and then develop our feeling, that maybe happens.
And to answer your question, I really like girl in my avatar, Riko Tachibana.