Say for OLS regression. Say you get asked which of these variables have the most impact on the dependent variable. So you can rank the predictors from most to least influence. Say most of the predictors are dummy variables but some are not. Is there a good way to do this? In a decade plus I have not found one. Standardized predictors won't work with dummy variables as best I can tell.

How is the DV formatted? Bayes network or partial R^2, but you need to control for precision around it, which may be sample error dependent. If you have holdout data, perhaps you can test in the new data using partial R^2 or whatever.