I say wear the bikini. Absolutely, wear the bikini.
I could give you a hundred reasons why a bikini will flatter you. The main reason is a one piece covers the parts of your body you want to show- your stomach, namely.
Frankly, I think people need curves and defined waists to rock a one piece (which you might have, I don't know). I have a small chest, thick waist, and narrow hips. One pieces look horrible on me. When I wear a bikini, I have the appearance that I have a chest and a waist.
I wear bikinis with more coverage on bottom, like the racer short style. Very flattering.
Try on different bikinis in different styles and bring your best girlfriend with you. She will tell you which suit looks best.
In summary, wear the bikini.
