Electoral College or Popular Vote?

[Skill and Chance]

I like the idea of doing it proportionally by state, but requiring say a minimum of 10% of the statewide popular vote to qualify for electors.  If it is purely proportional, a green or libertarian from CA or TX could fairly easily throw a 51-48 national election to the House, and the House process (one state, one vote) is even less democratic than the electoral college. 

I wonder what the dominant strategy would be for the parties in a proportional situation?  3 EV states would be pretty irrelevant unless they are really close.  You get 2 EV with 51% but need to get to 84% to get the 3rd one.  However, in CA every 1.8% of the popular vote gets you another EV.  Large state's like Ohio and Pennsylvania are basically never going to be outside of 55/45 which means they will always split evenly or within one vote of even in an election that is remotely close.  So it looks to me like it would be all about turnout in the large states.  D's would move their swing state turnout machine to CA and NY to try to get >70% and R's would do the same in TX.