What should take priority when highlighting a column and a row?

Question

Background

I have a table with a bunch of data that is connected to a map. The table row and table column can both be highlighted through different ways

1. Rows get highlighted when the user clicks on the corresponding city on the map or on the row itself in the table (Then the map highlights).

2. Columns are highlighted when the user sorts by that column (ascending or descending).

Here is a quick excel table screenshot to show which cell I am talking about

Question:

Which column highlight takes priority when there is an overlap like in the screenshot above?

Answer 1

There are a number of possible answers that I can see here:

Merge point: Use a pale tint for both the column and the row highlight and a stronger tint for the resulting cell where the two cross.

Importance: Is one axis of the table more important than the other? If so, the more important should override the less important.

Flexible: Allow the user to choose which highlight overrides which by applying the highlights in the order the user clicks - i.e. second click overrides first click.