Re: Character comparison
Seska hardly betrayed the Federation. She was a Cardassian operative who was undercover to infiltrate the Maquis, before being forced to serve on a Starfleet ship by circumstance.
Ro was the bigger Federation traitor, though it definately was far more personal for Picard and the gang.
Avatar: Captain Hilgrat Ja-Inrosh (deceased), Commanding Officer, U.S.S. Silverfin NCC-4470, Border Service Third Cutter Squadron
Manip by: FltCpt. Bossco (STPMA)