Klopp would be my choice Dortmund have been he best team we have played at Eastlands and also he has proved he can win league titles and get to the champs league final, as for Pellegrini his managerial stats are no better than Marcelo Bielsa who was lauded over his management of Athletic Bilbao until a poor run of results have left them mid table this season, His time a real does show that he has the skills to help us challenge but only time will tell if it is him