Atletico Madrid Diego Simeone. Anadolu via Getty Images Arsenal have played the most UEFA Champions League (formerly the European Cup) games without winning the competition at 223. Atletico Madrid have played the second-most at 190. One of these two European giants will get the opportunity to get off the schneid in Budapest on May 30. The other will have to wait at least one more year. Arsenal is the bookmaker’s choice at -225 to advance to the final, but Atleti will be brimming with confidence after dispatching one of the tournament’s favorites, Barcelona, in the quarterfinals. Atletico Madrid vs. Arsenal odds, prediction It may not be the most famous sporting cathedral in the world, but Madrid’s Metropolitano Stadium is one of the most atmospheric stadiums in all of soccer, and it will be in fine voice on Wednesday evening as Los Colchoneros host Arsenal in one of the most important matches in the club’s history. These two clubs have had very different paths to the semifinals.…