Looking at pure Numbers:
Tuck (287 grads); 50 Finance jobs; 125K average salary
Johnson (283 grads); 69 Finance jobs; 128K average salary
There are definitely more people at Johnson looking at Finance than Tuck. Finance is a pretty broad category - corp finance, IB, asset management, there are lots of flavors. Salary seems quite similar though but slight bump for Johnson. It seems if everything else is equal, perhaps you will have a bigger group interested in finance in Johnson, which is good (could also be folks who did not score consulting/etc roles settling for finance in part, hence larger number).... it is very hard to interpret jobs data

but I do think it makes it a competitive case for Johnson for Finance.