Marking those high points is always a good idea in that listening at first light (and last light...in some places) at those points can often provide all the info you will need on where to hunt.
One factor that I always look for in most places is the presence of surface water sources that provide places for turkeys to drink. If surface water is sparse in the general area, the parcels that have it will likely hold turkeys on or close by, assuming the other habitat features are similar throughout the area.
The presence of agriculture nearby is also always something to key in on. If any of those parcels are near farms that may be raising a crop that attracts turkeys, make sure to check that out.
All other things being equal, the primary tactic you should use is being on as many of those parcels at first light as you can between now and the season and listening (and possibly using a locator call) for gobbling...both on your parcels and within earshot on other parcels.
Then prioritize the parcels based on the above...but also taking into consideration the surrounding properties in terms of the presence of turkeys on them...and the potential for other hunters being on them and possibly impacting the hunting on your parcels (especially on those smaller parcels).
