The liberal arts of Zhejiang University actually came from the liberal arts of Hangzhou University before the merger, and the liberal arts of Hangzhou University can't be compared with Nankai University at all.
At present, the liberal arts of Hangzhou University is under the name of Zhejiang University. In fact, it just changed the trademark and changed "Hangzhou University" to "Zhejiang University". The teaching staff has not changed much, so it is better to go to Nankai.
There is also the academic atmosphere. Whether it is liberal arts or science, the academic research environment in Nankai is better than that in Zhejiang University. For reference only.