There is a way to do switch the place and description fields.
Go to any person that you know you have this problem and open up their screen.
Pick the problem fact and right click on it
A drop down list appears. Choose "Fact Data Options."
It will ask you if you want to back up your tree first. (Of course pick yes or no.)
A new popup screen appears. You will see the person you highlighted with the place and description.
At the top of the popup, pick "All individuals."
At the right side, "Uncheck All."
Now go through the list and checkmark all the people you have a problem with.
They are easy to spot because you know you are looking for a description that has a place name.
Once you have checkmarked all the people, go to the bottom of the popup and checkmark "Move data in the selected facts."
By default it picks "From place to description."
Hit the down arrow and pick "From description to place."
When you are certain this is correct, hit OK.
I've used this feature many, many times. As you can see, you can also select a fact to be chanted to a different fact or select a fact to be private or not private.
Walla Walla Bing Bang, you are done!