While it doesn't say anything about his arguments, it should be noted that John T. Reed is far from unbiased, he's Kiyosaki's direct competitor.
He is not unbiased as you say, but "direct competitor" is rather strong.
I enjoyed RDPD and there were several other Rich Dad books I found very good : Success Stories and Form Your Own Corporation. I can hardly think of dryer subject material than corporate legal structures, but I found the RD book easy reading