Expanding the size of the House would go a long way toward ending the Electoral College debate.
Except that there is no House size which causes Hillary to win. Gore, however, does end up winning eventually.
How big would the House have to be for Gore to win?
According to this, 654. Under 492, Bush wins. Between 492 and 654, it fluctuates depending on the number or even ties (notably a Wyoming Rule-sized house would've tied).
Expanding the House would do nothing to solve the main problem with the EC, which is not per capita representation but that non-swing states (the vast majority of the US electorate) are rendered irrelevant.