West Ham are widely regarded to have ‘won the summer transfer window’ but Aston Villa will be licking their lips about facing them. West Ham and Aston Villa have been two of the busiest sides in Europe when it comes to making signings. But while the Hammers have added eight quality signings and kept their top stars, Aston Villa have been forced to sell some of theirs to bring in new faces. West Ham supporters, rival fans, pundits and journalists have been lauding West Ham’s business. And many feel it is the best window business in the club’s history. But Aston Villa boss Unai Emery has been ju…