I'm 5'11, 155lb, with a 16% body fat index. I look decent with a shirt on, because I have broad shoulders and big traps, but with a shirt off I just look puffy, with some fat on my chest and stomach. My concern is if I try to lose that fat, I'll just look skeletal, but if I start bulking I'll look even chubbier. I feel paralysed in the middle of two choices and can't seem to figure out which is best to go for

Advice?