Sounds like quite a science behind the issue of preference points and limited draw tags. I put in quite a lot of research over the last year (being self employed helped a lot) and chose our Colorado deer unit based on the points we had accumulated, quality of the unit, history of the unit point requirements, discussions with the Colorado hunt planning staff (great guys!), discussions with the area biologist at the State (another great bunch of guys), hours of pouring over maps/digital images/GIS data, land ownership, scouting trips...the list goes on. Over the last couple year, anyone with 10 points and up (non resident) was guaranteed a tag. We accounted for point creep since Dad and I had 12 points each. This year, due IMHO to the season bumps, only 4 out of 11 applicants with 12 PP drew tags, with several applicants spending 15-18 PP for the 4th season tag.
Not complaining though. Colorado is a great place to visit and hunt and the people really care about their wildlife and support sportsmen really well. With all of the research done, I'm hoping to re-apply next year and will be looking closely at the 2016 harvest to determine if the unit gets "shot out" and if the winter kill is manageable and drought conditions don't take over. Good luck out there...there's always leftover tags!
P.S. Can't wait to dump these PP and start hunting...probably won't save up like this again, I like hunting more than point collecting.