Entertainmant, or Historical Accuracy?
For entertainment, Von Ryans Express; Bridge over the Rive Kwai, The Great Escape, Midway, Tora, Tora, Tora, They Were Expendable, Sands of Iwo & Run Silent, Run Deep.
For Historical accuracy, Band Of Brothers and Saving Private Ryan.
Somewhere in the middle, Enemy at the Gates.
Best flying scenes.. without doubt; Deep Blue Sea.