I have watches made of all the standard metals - yellow, white and rose gold and stainless. I have no platinum at the moment. Like you, I like rose gold - I find it very warm in appearance.
I could never understand the hordes of people who only go for white metals until I got a platinum wedding band and then figured it would be nice to have a watch that matched the band.
With respect to gold watches on bracelets, there is definitely an element of bling to that look. However, I'll never forget a time when I was growing up - I was probably 10 and knew nothing about watches. I was on vacation in the Caribbean with my family, and there was a chap with an 18K yellow Submariner. I thought it was the coolest watch I'd ever seen. I now think the watch is blingy, but it's also the first watch I ever loved and will always have a special place in my heart for that sentimental reason. I'll probably get one eventually (or a GMT) just to realize a youtful dream.