There are plenty of alternatives to YC, YC is just the posterchild for incubators rightnow. As far as archenemies are concerned, if by that you mean there need

There are plenty of alternatives to YC, YC is just the posterchild for incubators rightnow. As far as archenemies are concerned, if by that you mean there needs to be several competitors in the market so that the customers (the entrepreneur) has choices and the players in the market are forced to compete for the customer, then I agree. There are other incubators in the market, some with better deals; YC happens to carry a good deal of name and a great network with it though.