For sex, it was Tua/Tour from Pha Yao, mostly to be found in Pattaya, I think first of all at Splash. Great smooth body and eager in bed. Unfortunately, he was totally, astoundingly untrustworthy. For just companionship, there were dozens of very pleasant boys. For a perfect mix of companionship and sex: There was always something lacking in one or the other of those fields, so I never found a favorite.