LA 2019 Pre Pre Trippy ideas welcome / needed !

[Sotong]

New post as in the early planning stage for 2019 post GCSE mum and daughter trip.
Thought the place to start was the DIBB for ideas and suggestions. I’ll obviously be doing lots of research but thought this was a good place to start to see what the experts of the DIBB thought!

DD’s prom is the 19 June so thinking we will travel last week of June first week of July for 7-10 days.
Please comment on when and how long you think is best, any advantages to either !?

What to see -
Currently plan is Universal as my original plan was a trip back to Florida and to Universal again until request from DD for LA!
Hollywood too and ...

Any suggestions, things not to be missed with a 16 year old? DD has some ideas of what she wants to see, links to celebs probably.

Where to stay?
Initial though is a few nights on site at Universal, is this like Florida with perks like front of line?
AirBnB ? Any one have any experience of this in LA, any suggestions as to the area to stay in?

Transport - car hire or public?

As you can see from my signature i've done pre trips and trippies before and will probably use this thread as the start to my pre trip report.

Thanks in advance for help and suggestions. Gillian