My experience is that most amateurs will risk par to make birdie. Few architectural features and maintenance practices seem to affect this. Besides, don't most here profess not to be of the paper and pencil type?
BTW, I generally play to the conservative side, which, with declining skills, means a lot fewer birdies, and not many pars either. Within reason, aggresive play has more of just rewards, which brings to mind an old Sam Snead story.
It seems that his amateur partner had an important 15' uphill birdie putt which the guy proceeded to run by the hole a similar distance. In his unique, quaint way, Snead was loosely quoted as having said, "You know, the Lord doesn't love a coward, but he doesn't much care for a fool either".
One of the best amateurs I ever played with, Ross Bartchy Jr., once told me that he always approached each hole thinking of how to best make a birdie without jeopardizing par. I recall that he made lots of pars, a few birdies and bogies, and seldom anything else. No doubt that the architecture of the hole had a lot to do with his strategy, but course and weather conditions, the type of competition, and where he stood relative to the field probably dictated his play more.