Not sure what the Peninsular is. I've heard of the Peninsula.
I'd go for Waldorf as it's brand new. For LA though, location is everything and you should stay close to where you intend to spend most of your time. And for me, I'm bored to tears after an hour in Beverly Hills.
Dreams Unlimited Travel is committed to providing you with the very best vacation planning experience possible. Our Vacation Planners are experts and will share their honest advice to help you have a magical vacation.