When Aristotle isn't being praised as God himself, he gets beaten around a bit. So does Plato but mainly Aristotle. Here's something interesting that I found when going through my old files:
Aristotle may be regarded as the cultural barometer of Western history. Whenever his influence dominated the scene, it paved the way for one of history’s brilliant eras; whenever it fell, so did mankind. The Aristotelian revival of the thirteenth century brought men to the Renaissance. The intellectual counter-revolution turned them back toward the cave of his antipode: Plato.
There is only one fundamental issue in philosophy: the cognitive efficacy of man’s mind. The conflict of Aristotle versus Plato is the conflict of reason versus mysticism. It was Plato who formulated most of philosophy’s basic questions—and doubts. It was Aristotle who laid the foundation for most of the answers. Thereafter, the record of their duel is the record of man’s long struggle to deny and surrender or to uphold and assert the validity of his particular mode of consciousness."
- Review of J.H. Randall’s Aristotle, The Objectivist Newsletter, May 1963, 18