Hi Steve,
Thanks a lot for the reply. What I did was to copy all the parameters in the prediction error of each model and encode in excel. The process is a bit tedious but I can be sure of which model I could choose (eg. model with lowest mean, Root Mean Sqr and Ave. Std. Error is a bit large but gap is small, etc.).
It would be easier if only one parameter (e.g. mean) is to be compared, however, in choosing the best model, we have to consider the RMS and ASE values, gaps, etc.).
This I guess cannot be done in ArcGIS as this needs manual analysis and would be based from the best jugdment of the user.
Thanks a lot and have a great weekends!
Cheers,
Eif