I'm torn between wanting huge DD implants or tiny little A or B ones someday if I ever get the money saved.

As a girl with B cups, I can tell you that while my bust may be small, at least it never gets in my way. My wife has D cups and she's complained about them causing her discomfort either by not fitting into her clothes or straining her back at times. There's also the issue them flopping around during certain activities and the unwanted attention you may get from others.

That's my two cents as a girl with Bs, anyway.