Looking for a quick getaway to Europe, and thinking of Riga and Vilnius as possible destinations. I would fly Finnair and have OW Sapphire status. I would consider an open jaw ticket and travel between Riga and Vilnius by land. My questions:-

1) Which airport, Riga or Vilnius has a better Finnair lounge?
2) I understand Finnair has two lounges in HEL, one in the Schengen area and one in the non Schengen area is this correct?
3) Am I correct that flights to Riga or Vilnius depart from the Schengen area of HEL?

Thanks in advance.