RE: Where to put a treestand and why?
Welcome to the board!
As said, funnels are great areas! Deer are no different than any other animal, they will take the easy route most of the time, so any steep creek banks, and land contours are good stand choices! Also, if you are not crowding other land owners, fences lines can be great too!
Look for "edge areas", where big woods meet fields, and/or clear-cuts!
Put these "edge areas" together with funnels and fence lines, and you've got yourelf a sure honey hole! Good luck!