Hi johnmar,
Of all the tests, to my ears the first one with the built-in mics and the last test with the AKGs one meter apart were the two best results. By the way, those built-ins exceed expectations in my opinion. The AKGs a meter apart produce very fine sound too. In both tests the sound is vibrant. In the other tests the sound seemed to be either quite dry or having way too much reverberation. If I had to choose between these two, I'd probably go with the last one. The first one with the built-in mics has just a little too much brilliance and reverb such that it doesn't quite attain the same clarity as the AKGs in the last take. Maybe some of the others here will vote as well.
David