JKM,
Can you really back that up? That angles are the key?
TPC Sawgrass has angles galore, but not wide fw. Hitting those fw requires a combo of distance and direction, so they are great, but if they are wide enough, the angle becomes less important.
As to hitting greens, in my continuing informal research of good to great players, very few really obsess over the frontal opening, or even the correct angle to approach green contours, although thats a little more important.
Think of Sergio and Padraig hitting to the pin on 17 - they know the carry they need, unless its really tightly guarded and swirling winds. They hit pretty straight shots, but maybe could have cut them in there.
I believe - although I couldn't back this up either - that ball striking is so pure among those who are going to contend (all the usuals, plus the mid range players who have their game in top shape) that focusing on something to separate good ball striking from average ball striking would be the key, if any, to designing a championship course.
And that leads me to the conclusion that fw contours to vary the lie and green contours that really differentiate how close you are to the pin would be the way to go. I think adding in the "temptation" factor to entice them to try stuff they shouldn't, i.e. the driveable and reachable holes might add spice and differentiate, but only if properly done. (and I would have to think about what that term meant, as well!)
I also think a variety of green sizes, fw widths, and green surrounds would tend to bring more players into the mix - as each favors accuracy and finesse a little differently and might play to different game strengths to offset pure distance and putting.