Lognes without a shadow of a doubt.
No distance from the train station and direct line into the center - quick and regular trains.
Hard runway and nice and friendly.
Only possible draw backs are - no customs, land at L2K or for a cheaper option Lille to clear, fuel is cash or fuel card (although they say they take credit cards), and for the uninitiated you need to be comfortable with the airspace around C de G.
I would second the restaurant and there is a good cheap hotel on the field and better ones close by.