the bee's knees 出类拔萃的人（或物）
Wow, he is the bee's knees.
他很出色，出类拔萃。

an example to sb 榜样，楷模，模范
She sets a shining example to her peers.
她是同龄人的榜样。

be/stand head and shoulders above sb/sth (to be much better than other people or things) 比其他人（或事物）好得多；出类拔萃；鹤立鸡群
There's no competition -- they're head and shoulders above the rest.
没什么好比的，他们比其他人强太多了。

a cut above sb/sth（better than sb/sth) 优于；比....高一等，胜一筹
Her English is a cut above most Chinese students.
她的英文比绝大多数中国学生都要好。

big-league 一流水平的，出色的
Her spoken English is big-league.
她的口语非常出色。

superior 占优势的，更胜一筹的
vastly superior to sb 比某人强得多
She was chosen for the job because she was vastly superior to other candidates.
她比其他应聘者强得多，所以她得到了这份工作。

first-class 出色的，优秀的
Wow，this is some first-class pizza.
这个披萨超赞。