We stayed at POR the last week in January 2018. The resort was pretty full. The food court was packed every morning. As in, people were walking around with their trays looking for tables. This seemed to be families, not groups. It was our first time going that time of year & we thought the crowds were moderate, especially in MK.
This year we stayed at YC starting February 3rd. Again, the parks were moderately busy. There really are very few hit & miss quiet days. I personally don’t think there is any significant difference in your 2 weeks.
Also remember the Super Bowl is February 2nd in Miami. I know many people don’t think that will affect WDW. But there very well may be a parade in MK Monday or Tuesday. We went to that this year & the park was packed with NE fans. We talked to some who went to the game in Atlanta then came to DW for the parade. So I think it is possible for higher crowds Monday & Tuesday.