Here's an interesting little analysis I just did. I looked at the numbers as they currently are posted at The Green Papers (which aren't complete, but I doubt much would change), and decided to look at what would have happened if every state allocated its electoral votes proportionately. I looked at two methods: D'Hondt and Sainte-Laguë.
Under the D'Hondt method of allocation:
Mr. Trump: 268
Sec. Clinton: 267
Gov. Johnson: 2 (1 each from California and Texas)
Mr. McMullin: 1 (Utah)
Under the Sainte-Laguë method:
Sec. Clinton: 264
Mr. Trump: 262
Gov. Johnson: 10 (2 from California, 1 each from Florida, Georgia, Illinois, Indiana, Michigan, New York, Ohio, and Texas)
Mr. McMullin: 1 (Utah)
Dr. Stein: 1 (California)