Those first benchmarks can barely be considered legit: The first was an i7 920 setup to run as the i5 750. While the specs then are very similar, it does not necessarily mean they'll run the same.
On the second benchmark, the i5 750 was OVERCLOCKED and the PII was STOCK. But then, here comes the argument, "Even though it showed an OC'ed 750, there also was a stock 750, which beat the 965". True, but all these tests had to deal with memory read/write times. If you look at the synthetic multi-threaded applications tests, the stock PII beats the stock i5 750 hands down. Since these are quad-core processors, I would guess, and guys this is just a wild guess based on no solid hypothesis
, that the latter test is really the one that matters the most.
edit: The i5 750 does win in the WinRAR test.
edit2: The PII also comes out on top on the application tests (beating the i7 960)