SOCCER-CHAMPIONS/Where to start after four brilliant Champions League quarter-finals, even if the intrigue for next week's second legs has all but gone from three of the ties with Barcelona leading Shakhtar Donetsk 5-1, Real Madrid 4-0 up against Tottenham Hotspur and Schalke 04 in total charge against holders Inter Milan after the 5-2 triumph at the San Siro.