They're pretty much the same rides ,attractions etc .I think in the past the times were different ...MNSSHP 7-midnight.The last time I went to MVMCP the time was 8pm to 1am,I'm not sure if that's the correct time for it now or not.
There aren't any special stage shows for MNSSHP like there is at Christmas.
Other than that the park runs about the same at both parties.