My vote is the sa-08 , I got one for my wife last June and It was flawless its first season. We looked at almost all the available youth semi's on the market and ended up with the sa-08 for a few reasons. My wife is a small thing, coming in at 5'0 107lbs so I wanted a semi auto and preferably gas for recoil reasons. Next the SA 08 was the slimiest of the semi autos she handled which made it easy to handle and control. She could firmly grab the forearm and it has a narrower throat on the pistol grip then most which also helped. another reason was it came in a 24 inch barrel which I prefer over the standard 22 inch youth barrel. The 24 gives a little longer sighting plan and a smoother swing in tracking targets. But the most important reason was after trying all the shotgun we did its the she put to her shoulder and then looked at me and said its the one.
She shoots Carlson's choke tubes in it in LM and IM and coupled with 1 oz nitro mags in 4s or blindside 1 1/16th 5s has been very deadly on decoying ducks up to mallard size. The SA 08 also took a total of 17 honkers this year a few being late season MN giants using both Federal 1 oz #1s and hevi shot through a IM .