Which among the griddata methods(li​near,cubic​,nearest and v4)should i use and why?or should i do something with gridfit??

I am plotting brightness temperature of the moon from the data available from LRO mission of NASA.I am using MATLAB, in that for plotting i am using the griddata function since the data is unevenly spaced,i.e latitudes and longitudes both vary simultaneously.Which among the griddata methods(linear,cubic,nearest and v4)should i use and why?or should i do something with gridfit??