Originally posted by princess crazy 
Thanks so much CarolMN!
So I'm assuming you're saying that Tuesday would be alot less crowded than Sunday?? I was thinking that myself too but have never heard of the difference btw the two only that we should'nt go on weekend nights....(snip).........
Also what about Thursday nights? Are they more crowded than Sunday or Tuesday?? I only ask because if we were to get rained out this would be the only other week night party to attend. 
		
		
	 
No, I'm saying (or at least meant to say, LOL) that Sundays and Tuesdays are about the same as far as crowds go.  
IMHO, Thursdays are likely to be more crowded  - many locals will take off a Friday to go to the party on a Thursday evening.  Perhaps some will take off a Monday (to go on Sunday evening), but I believe that is less likely.  
Anyway, my point is that between Sunday and Tuesday, don't decide based on what you think the crowd situation will be. There won't be enough of a difference to make a difference!  
FWIW, if the parties sell out (and some years they have), all the nights will be equally crowded.  Disney does limit the number of tickets that it sells for 
MVMCP events, but IMHO, the number is quite high.   Fridays tend to sell out the quickest, so that is why people say weeknights are less crowded.  That's technically only true if the night doesn't sell out!
P.S.  Try not to worry too much about rain.  Yes, last year it did rain, but it was an unusual year for weather in Florida.  We've not encountered rain in our early December trips except for last year and have been going every year since 1998.  The odds are in your favor.  Check the average daily/monthly rainfalls for Orlando on 
www.weather.com if you want details on weather.