I run a course that has a few guarded baskets---but usually only from one direction. #4, if you overshoot, becomes a problem. I've heard some pros mention the "rule" but I've never seen it myself and I don't mind a little tree action. Generally, though, you can guard a basket without putting trees within a few feet of it. That part seems a little gimmicky.
For the record: the first basket seems like a silly placement. The second one is ok, and I really like the third one.
For the record: the first basket seems like a silly placement. The second one is ok, and I really like the third one.