Should I do this? Help needed!!

[Shuo Jiao]

I have been looking at properties from all over the country. One big problem I have is that there are too many properties that I do not know which ones I should focus on. I am thinking about creating a tool where it gives a preliminary rank based on the investment potential of all the available properties so that I can do more thorough research on the top ones first. 

My question is: is this the right way of approaching this and will you find this type of tool useful?