CWTS more on community just like the name suggests. Preferrable to kung yung katawan mo eh hindi pambiladan sa araw at kung may hika ka or other illnesses like that.
ROTC more on physical training, as like on military. May perks din ikaw na makukuha on PH military if matatapos at mag-eexcel ka dito just like the experience on some of my classmates that takes ROTC.