[QUOTE=mousemom;1126989]We went 3rd. week in April and it was perfect!!! Low crowds and nice weather.[/QUOTE]
That certainly depends on when Easter is.
A late Easter WILL cause major crowds in WDW for the week starting Thursday before Good Friday and usually persist for the next 8 days into the second week of April and even sometimes into the third week.
Late January through mid February are usually very low crowd times. Just avoid MLK weekend and Presidents’ Day weekend.