Which has a better reputation in general? For NYU, it would be College of Arts and Sciences that I am wanting to compare to Smith. What is better for an English major? Which is better for law school? Is one more prestigious than the other?
This depends on who you ask. Read the course catalogues carefully ans see what the requirements for English majors are, and check the specific offerings. One program might be more interesting to you.
Law School admissions is primarily about your GPA and performance on the LSAT.
but in your own opinion?
I’d say Smith.