The cream of the crop:the best people or things in a particular group 精华,出类拔萃的人(或物)

Only the cream of the crop of the year's movies are nominated for an award.
只有本年度最优秀的影片才能获得提名.

She is really the cream of the crop(= the best in her group).
她的确是那批人中的精英.

a creature of habit:a person who always does certain things at certain times 总是在特定时间做特定事情的人,生活极有规律的人

My grandfather is a real creature of habit--he likes his meals at the same time every day.
我祖父生活很有规律,喜欢每天在同样的时间用餐.