We'll be at WDW the same time you're there!

I am planning on doing
MVMCP on either that Sunday or Tuesday, which do you think is the better choice, or does it matter when it's that early in the 'season'? I haven't read anything about the first night of the party, and I was curious if it was more crowded that night.
Also..do you think there will be CP nights that week? I'm taking my mom on this trip and I think she'd love that!