Matt,
The par 4s are better at Rock Creek, in fact they are a really excellent bunch. But that is counteracted by two distinct advantages at Stone Eagle - less searching for lost balls and better golf shot watching.
It's fun to watch your shots come to rest, whether they are drives or approach shots. At Rock Creek, you could conceivably hit approach shots on 2, 3, 4, 5, 6, 9, 10. 14, 15, 16, and 18 and not know where they finished until you got close to the green. Blind shots are part of the game, but they should not dominate the action, because it robs the player the pleasure of watching his own shots.
I see the greens at the two courses being very similar. Rock Creek's might be a touch harder on average. Both course feature difficult and interesting greens, which use the mountain slopes to deceive the unwary golfer.
I'm biased, because I get to play Stone Eagle regularly, but to give such a complex, beautiful course, which offers so much round-to-round variety, and uses the principles of width and undulation that we covet here at GCA, a Doak score of 5, makes me think Jonathan played the course on a 110 degree June day after already playing 18 holes in the morning. The course yields shots of considerable interest in a spectacular setting, and especially tests the player's ability to judge uphill and downhill approach shots.