Mile or 1500 vs. High school GPA weighted, high school GPA unweighted, college GPA unweighted. (I guess you can add grad school GPAs if you want.)
GPA can be converted to a time by multiplying your seconds by 60. E.g., 3.9 GPA = 3:54.
Tthere are six ways to do this. I'll rank them from the approximately (my judgment here) most impressive to least (which is still very impressive). The validity of this ranking depends on if your school(s) had inflated grades or not, the relative inflation comparing HS to college, and the extent of the weighting possible in HS.
1. Mile and College GPA
2. Mile and HS Unweighted GPA
3. 1500 and College GPA
4. 1500 and HS Unweighted GPA
5. Mile and HS Weighted GPA
6. 1500 and HS Weighted GPA
Converted times are fine.
I come closest (ie not even close) with a converted 1500 and HS weighted.
4:31 vs. 4.1GPA (4:06)