This is first time to LA. We are a family of 4, 3 adults +1 16 yrs old. Arrive LA on 25th 5pm, staying near LAX. Staying 2 nights. Leave on 27th 11pm..Will not be driving. Using only public transport.Plan on Universal Stu. And city tour. Should it be combined in 1 day or separately on 2 days. Thanks.