Question: what according to romeo is the biggest difference between juliet and rosaline?
Answer: Romeo says that he is in love with Rosaline, but out of her favor. She has obviously not requited his love, and he is very depressed. When Romeo sees Juliet at the Capulet's party, he forgets about Rosaline, so his "love" for Rosaline was more like infatuation, puppy love.