My all time favorite is "They Were Expendable". Just a superb flick on all counts
That's one of my favorites too. I like the movies depicting the early stages of WWII when we were getting our asses kicked but planning for a return match.
I like "Battle of Britain", especially for aviation related war movies. The Spitfires, Hurricanes and Messershmidt 109's and HE 111's were real. Well the 109's were actually built under license in Spain by Hispano, but they were real 109's. CG stuff just doesn't do it for me even as good as it looks its till looks fake to me.
The "Bridges at Toko Ri" is also a great movie. One of the few Korean War movies made and I think the only one about naval aviators in Korea. The Grumman F9F Panthers, while obsolete compared to the MiG 15 was a neat airplane.