Hi Robert,
I would approach this problem with spatial analysis of point patterns. The first thing that comes to mind is the Bivariate K Function. This would test if the two point datasets are different or not. This link should be a starting point: http://wiki.landscapetoolbox.org/doku.php/spatial_analysis_methods:ripley_s_k_and_pair_correlation_f.... I do not believe that ArcGIS has a tool for Bivariate K Function, but you could use R and the package spatstat to do this analysis. You could also potentially program this in python, but using R I think would be simpler. You also might think about using kernel density estimation as well on both datasets.
I hope this helps,
Cheers,
Luke Kaim
Thank you,
Luke Kaim
Thank you
Luke Kaim (SIE)
Lucas.Kaim@maine.edu
(914)263-7866
"Don�??t complain. Just work harder" (Randy Pausch).