Question

prefer to do 与prefer doing 有区别哇

Answer 1

prefer to do something rather than 。。rather than后面可以是不定式、名词、动名词或动词原形。
prefer to do的话后面肯定还跟了个比较结构（如rather than do）,prefer to do 中的to 为动词不定式；
prefer doing，doing为动名词

Answer 2

都表示情愿做某事，prefer to do A rather than do B
prefer doing A to doing B

Answer 3

prefer to do 表示偶尔的动作
prefer doing 表示经常的动作