Those bandeau tops scare me, like they would fall off.
I usually wear a triangle top because I have smallish boobs (bcup) and they usually look nice in that top.
As far as the bottom, SHEESH. My dad's genes oh-so-nicely gave me the most abhorrish love handles in the world. So, consequently, it's all up for grabs as far as what type of bottom I'm wearing. I don't really like boy shorts, so I usually just go for a wider bottom (not something with a string).
EDIT: Oh, and my best advice is when you go bikini shopping, don't buy a "set." Go into a store where you can buy the top and bottom separately. If you are like me, you need a bigger bottom than the top. So, always best to be able to choose different sizes. As well, you can mix and match!