As long as they are real I like any size boobs. Bigger is nice, but I would prefer a small set of naturals instead of a big set of inflatables.
Personally, I prefer petite women with B cups, especially if they have a pixie cut. and some tattoos.
Big boobs certainly aren't the be all and end all, though a good size is always a bonus. C/D is probably bang on the money for me.
I like very small breasts - early puberty stage - many woman still have very small breasts that don't grow bigger with age. Their bodies stay basically the same as they were as in their very early teens but they just grow older in other ways.
I like small perky young looking breasts. Not those that are starting to show signs of old age. Small breasts are much sexier as they don't bounce up & down & wobble as much as big ones & they look firmer too. That's my opinion thou.
big or small or not better or worse just different. My preference is smaller breasts and perky nips but really I am attracted to the whole package with personality and wit and smile being the biggest attractors
I love all sizes, until they sag to the belly button. But as long as they are firm I like them. Small with perky nips really turn me on.
There are lots of other factors that are much more important, but this is a boobs thread, so... I'll say I have a B or C preference, though A is certainly fine, too. I personally find D+ sizes to be kind of unappealing, though I suppose some of that really depends on proportion to the rest of her body. What I really never understood is some men's enthusiasm for simple quantity. ("Did you see the size of those things?", etc.) Just doesn't do it for me.
Prefer smaller breasts. Seems they are more sensitive but what do i know being a male who hasnt polled women on the street. Key for me is natural and in proportion to body frame.