Pardon the addition, but I think the survey may be just a tad skewed in a certain direction...
My choices:
2) Bigger than reality is good, but don't make then TOO big.
The only reason I go with this one is because, well, the intarwebs has done some ridiculous things with too big. Anything bigger than a J (U.S.) is unnecessary. Up to and including J though, it's all gravy.
e) I have a fair amount of physical experience with breasts and I prefer bigger over smaller.
I'll grant you the following caveats however: nicer breasts get bonus points, implants get major minus points. Some sag on larger breasts is not a problem.
The other important part not mentioned in the survey is body type. For me, somewhere between properly fed but still thin and zaftig is optimal. Really thin girls with really big breasts are a rarity and look a little bit odd IRL even without implants, but curvier ladies look great with a nice set of tiggles.
I just hope people have not been skewing their own answers for the sake of currying favor with less-busty lady forumgoers. It would be good to get some honest opinions about preferences. And frankly, just because you have a preference doesn't mean you can't love a smaller or larger set of breasts just as much as any other. You simply may need to get to know them better, and I have certainly loved various sizes in my life without reservation. But had I my druthers, they'd be big (and not fake).
Minor note: in your most recent game, a cup size up would have been about perfect for me.