I would find it useful when using Image Size if the last used method of resampling was the default.
Personally I am usually downsizing so use Bicubic Sharper most often followed by upsizing with Bicubic Smoother and almost never use just Bicubic.
You can make this change in the Preferences>General. At the top is a series of drop-down boxes. The one labeled "Image Interpolation" is actually the default that will be used the the Image Resize dialog.