First, this. Intelligence is NOT a simple linear measure. And the real geniuses claim to be the third or fourth smartest. What that does is gets everybody wondering who the others two or three are. Additionally, at extremes there is no simple A is always better than B. Sometimes B beats A.
Yeah, the Lunella thing is canon. But if there's not a Val/Lunella mix someone at Marvel needs to go to bed without supper. Even with the number of girl geniuses at Marvel now, I expect Val and Lunella would be the top two and neither seems to be comfortable settling for second place.