It must be better to live in Chiayi. First of all, there is no direct bus to Alishan in Taichung. You still need to go to Chiayi. Chiayi has a small alpine train to Alishan. From Monday to Friday: Chiayi-Fenqihu 09:00. Saturday, Sunday and Taiwan statutory holidays: Chiayi-Fenqihu two buses at 09:00 and 10:00. <br/>Chiayi also has direct buses to Alishan Scenic Area. Chiayi High-Speed Railway Station has Taiwan Haoxing Alishan Line A, 10; Chiayi Taiwan Railway Station has Taiwan Haoxing Alishan Line B, 6; 10, 7; 40, 8; 10, 8; 40, 9; 10, 10; 10, 10; 40, 11; ; 10, 10 classes arrive at Alishan Scenic Area. <br/>As for the night markets in Taichung and Chiayi, they are the same, and the convenience of transportation is the main focus.
It is better to live in Chiayi, which is closer to Alishan. Hotels near Chiayi Railway Station have relatively convenient transportation. There is also a famous turkey rice nearby. If you have time, you can go to the Wenhua Road Night Market in Chiayi~
Taichung is a relatively large city, but it is a bit far from Alishan, but the transportation is quite convenient, and there are many choices of places to live.