With an auto youll be happy with a JRSC. Relatively, lots of torque, well suited to an auto tranny.
But some automatic transmission turbo cars do well also, in the case of the Pontiac Solstice GXP. The auto trannied car is actually a couple tenths quicker to 60, and through the quarter, due to the automatic transmission keeping the engine loaded in between shifts; whereas the manual tranny unloads the engine every time the driver clutches to shift. Loaded engine=spooled turbo. Dunno how common this is because usually an automatic transmission will sap power from the engine due to the power it takes to shift.
Another reason is that a supercharger(most commonly for hondas) will be belt driven. Meaning it will be making boost not far off idle so you can have boost down low. A turbocharger would need you to get the engine revving to get a good launch, something you cant really do in an auto.
But i could be 100% wrong in all of this, now that i think about the concept of brake torqueing(and making the connection between that and the whole loaded engine concept i brought up)
Someone else(like mteg) can help you better.