One of the least reliable and easily distorted benchmarks is nearing the end of its life. Having seen this from the vendor's side, the TPC-C benchmarks of so little relevance to real world database performance as to be virtually useless to companies looking to compare the performance of different vendors. What the benchmark does tell you, is who is investing money in their databases, as running a TPC benchmark costs a lot of money. The reason you hardly ever see Sybase or Postgres or MySQL in the top ten is they can't afford / aren't investing to run the benchmarks. Looking at the top ten this morning you see Oracle, IBM and Microsoft filling up the whole list. No surprises there.
Whether the new benchmark (TPC-E) is any better, is the question. It is based on a financial scenario, which may work against Oracle (which has never been great at high volumes of small transactions which are typical of financial systems) a bit, but its unlikely to be much more real-world than the old one. Good companies will have to run their own benchmarks, like they always have.