i plan on running the 20amp and 1 -10amp to the shed, as it will will have a 5 hp air compressor, and many tools. the other 2 are for general outdoor use....
as to the 200 amp feed, my buddy is a master electrician with 18 yrs exp, at a local shipyard, and never mentioned that i needed to upgrade the feed. its only 2200 sq ft house, we just had 12 people over for fathers day, had the tub on, both ovens, tabletop warming trays, etc. didn't have a problem.....
And of course leave an outlet open for the keg-o-orator.