Was planning on going to Disneyland sometime between May 27-30 but am a little concerned with how crowded it may be with it being a holiday weekend and opening weekend for Guardians of the Galaxy. Would we be better off going June 24-25 or 28-29? If we go at the end of June instead of the end of May, how will that affect the crowds at Universal Hollywood, which we also want to do? This will be our first trip to the parks.