Ive seen, a F-15 Eagle, and ive seen about 12 Apache helicopters all flying in formation what was very good..and LOUD, i saw the apache copters while i was watching my brother play football for his team, so all the crowd looked up in amazment.
I live near Fort Dix(which is actually being merged with 2 other installations to form one), so I'll occasionally see Blackhawks, Apaches, and even Pave Lows(I think).