Navision Consolidation

Hi, I am planning to implement a Consolidation solution we have 3 group company under 1 holding company and under 3 groups companies there are 8 companies whose operation and financial year are diffrent We also have diff LCY for diff countries. We are considering COMSHARE, HYPERSIONa well as Navision CONSO. I would like to know if somebody has used the above software how fexible is it as compared to Navision one. If I have to use navision conso what are the advantage against COMShare. If some body has used HY…/COMSHARE could you share your experience or Do we have any body who has got a Interface to any 3rd party Consolidation software. Please advice Cheers