I would go for titanium. The weight is so much less it's amazing. In terms of bending or getting loose etc. the titanium is much better than high quality SS bands I've had in the past.
I've had my citizen titanium watch for many years now and no way would I ever go back to stainless. Titanium does scratch more than stainless but it is such a small amount you don't even notice it. I have zero scratches on the bezel, maybe a few tiny ones on the band (same as would be with stainless over years o use) and several light ones on the bottom of clasp where the band closes. If you are wearing your watch working on a car or something then titanium would scratch more but if you don't beat up your watches you won't really notice a difference in terms of scratches.
I've had my citizen titanium watch for many years now and no way would I ever go back to stainless. Titanium does scratch more than stainless but it is such a small amount you don't even notice it. I have zero scratches on the bezel, maybe a few tiny ones on the band (same as would be with stainless over years o use) and several light ones on the bottom of clasp where the band closes. If you are wearing your watch working on a car or something then titanium would scratch more but if you don't beat up your watches you won't really notice a difference in terms of scratches.