This Morning presenters Alison Hammond and Holly Willoughby have paid tribute to each other after it emerged that they would be going head-to-head at next month’s National Television Awards.The stars of the ITV show have both been shortlisted in the ‘Best TV Presenter’ category, alongside a line-up that also includes reigning champs Ant and Dec, The Chase’s Bradley Walsh and former Good Morning Britain host, Piers Morgan.