Wrong. They lose because of plot favoritism. Read the lore. The Eldar are not just 'faster', they have the advantage in foresight as well and vastly superior technology. Not to mention use of the webway. On top of this the Eldar are not inhibited by honor and will utilize hit and run tactics at any opportunity. You are have no idea what you are talking about. Not only are you just flat out wrong when you say "it's about who comes back from the next hit" (seriously what the hell are you even basing that on? logically the person who can AVOID getting hit all together would be at a better advantage, no?) but you are ignoring every advantage the Eldar have. You are also ignoring that Eldar are some of the best close combat specialists in the galaxy. You honestly have no idea what you are talking about here. I could just as easily say that it's about whoever can avoid being attacked that decides the winner.