Oh I do like a nice partisan scrap... err, spirited debate.
But seriously, I am just grateful that we have 2 such resources to choose from, based on totally different business models and thus competing on value add rather than just on price. Let's not forget that these are revolutionary businesses in the history of travel planning. They represent the crest of that incredible wave that is putting the decision making power into the hands of the traveller rather than the supplier or the intermediary.
Long live EF and KVS! ^