I'll be travelling to Jiuzhaigou from Chengdu by coach (bus) this October. I know the journey is very long. To enjoy the view, which side of the coach (bus) is the best option?

Generally, there are two routes from Chengdu to Jiuzhaigou by bus: west route (Chengdu-Dujiangyan-Wenchuan-Maoxian-Songpan-Chuanzhu Temple-Jiuzhaigou) and the east route (Chengdu-Guanghan-Deyang-Mianyang-Jiangyou-Pingwu-Jiuzhai Gouxian- Jiuzhaigou). To choose the right side on the coach, you have to choose the route first.