What is the biggest monster in monster hunter

The Moster Hunter Freedom community has a connection to each other due to be seing Rathalos in all versions of Monster Hunter.In Monster Hunter 1 and so on,MH Freedom 1 and so on,MHF unite,MH G 1 and so on,all of them,I know that Lao-Shan-Lung is the biggest.But in the MH Portble versions,Jhen Mohran is the largest.