There are three basic systems as state can use, with some degree of vaitiaon in each:
1. Winner-take-all, the system most states use. If you carry the state, you get all the electoral votes.
2. The district system, which Nebraska and Maine use. If you carry the state, you get the two “at large” electors, but the candidate that carries each congressional district gets that district’s elector.
3. Proportional representation, which I don’t believe any state uses. Simply put, if you get 51 percent of the votes, you get a slight majority of the electors. if you get 60 percent, you get 3/5 of the electors (or as close as they can get to that.)
Constitutionally, it is up to the legislature of each state to determine how electors shall be chosen. (They could just do it themselves, if they so chose.)
Hm. That might be even more 'representational' of the state's electorate than even the "district system".
I think it might be more prone to fraud, though, if the Demon Rats could load up particular districts in big cities with double votes, or dead-man or pet votes...that could push a state to a greater degree than trying to pull off fraud in a number of different districts.
For instance, the rats might be able to (and do, I am convinced) in the inner urban districts of Philadelphia, but doing so in the rural areas of the state is a bit tougher.
Seems to me the "district" method would be better.