The fact that the BU credits eclipse the rest of the projects has no bearing on the rewards!!! Gridcoin accounts for the difference, BU miners get the same share of the daily mint as the rest of the 34 whitelisted Boinc projects by Gridcoin.
BTW, Nothing is easier for a newb than loading Folding@Home's NaCl client in a chrome browser and registering on the folding pool.
Thanks for your comments. I went to the various websites and pages for the coins. However, being new I didn't really learn anything useful from an investment standpoint. I learned more from your post than hours of reading.
As far as folding, I was going to do that but it said I should have a broadband connection. I have 3g sometimes but my internet is prepay by the megabyte. My guess is that I would spend way more in internet than I would get in coins. Does anyone know how many megabytes/hour or day is used by folding?