Percival Fraulein (Suikoden III) vs Rose (Legend of Dragoon): Pretty close. My bias makes the tiebreak here.
Chris Lightfellow (Suikoden III) vs Raquel Applegate (Wild Arms 4): More striking, with that hair/eyes combo. And fewer piggytails.
Squall Leonhart (Final Fantasy VIII) vs Excellen Browning (Super Robot Taisen Series): Don't really dig Excellen, whereas Squall is attractive enough to break my anti-teenager bias...
Yueying (Dynasty Warriors Series) vs Igrene (Fire Emblem: Binding Blade): Not bad, digging the higher-res image as much as anything here.
Mitsuru Kirijo (Persona 4 Arena) vs Lyn (Fire Emblem: Blazing Sword): I don't like Persona art much, and I don't like teenagers much. Mitsuru's still pretty attractive anyway (although she does look older in the P4A shot which helps).
Lorelai (Suikoden Series) vs Nina Wyndia (Breath of Fire II): Nina's a fave.
Hrist Valkyrie (Valkyrie Profile series) vs Alice Elliot (Shadow Hearts): I dig the valkyries' general look. Alice never did much for me, I think it's the weird dress.
Aya Brea (Parasite Eve) vs Karin Koenig (Shadow Hearts: Covenant): Something about red/pink hair.
Lightning Farron (Final Fantasy XIII) vs Geoffrey (Fire Emblem Series): Valkyries.
King (King of Fighters) vs Elhaym van Houten (Xenogears): Not sure.
Nel Zelpher (Star Ocean: Till the End of Time) vs Nailah (Fire Emblem: Radiant Dawn): ... also not sure, for all that I like these two notably more than the previous two...
Whim (Mana Khemia 2: Fall of Alchemy) vs Melissa Mao (Full Metal Panic! series): MK's art style does not lend itself to attractive people of either sex, IMO.
Thor Odinson (Marvel Cinematic Universe) vs Cordelia (Fire Emblem: Awakening): See comments last week.
Katherine McBride (Catherine) vs Gaignun Kukai, Sr. (Xenosaga series): Definitely one of the hottest RPG dudes and he's not really my style, even.
Haken Browning (Endless Frontier) vs Oerba Yun Fang (Final Fantasy XIII): Pretty close, feel like going with Fang's unkempt tomboy look over cowboy hat today.
Sophitia Alexandra (Soul Calibur series) vs Lucia (Fire Emblem Series): Ooh, now this is good. Higher-res to the rescue.