Provide both. You should note with Stanfoird’s new application rules that you self-report your highest composite and then your highest section scores, meaning you can report section scores that come from tests other than the one with the highest composite. Why? Because Stanford uses the highest composite to determine admission but its colleges may also consider particular higher section scores from another test, e,g, engineering will consider a higher math score from a second test.
Stanford’s engineering college is not alone in using the highest composite to determine admission while also considering a higher math score from a second test. UIUC’s engineering college does the same. There are undoubtedly others, so you should seriously consider providing the scores from both tests.