Need expert enthusiast help...

can anyone guide me to the best locs around these airports if they exist.

I know CDG at the Hilton and Sheraton have rooms with a view along with several others. And near the Hilton you can catch taxiing aircraft. But how about around the runways??

Anywhere you can catch takeoffs/landings at both wonderful Paris airports?

Any observation at Orly or hotel there?

THANKS a lot in advance.