Will The Undertaker's retirement/farewell be more emotional than Shawn Michaels retirement/farewell?

I would say so. The Undertaker is seen as the bigger legend, and the fact that he is such a backstage leader means that it will be as emotional for the WWE locker room as it is for the fans. Many Superstars have stated that there wil be a huge void when the Undertaker leaves, and they are right.