The best has been removed by now. I'll save Aquiel. It's not brilliant, but it's not bad either. It's very average and on first viewing, the mystery works.
TNG Season 4: "In Theory" (written with Joe Menosky)
TNG Season 6: "Rightful Heir" (teleplay)
TNG Season 6: "Descent, Part I" (teleplay)
TNG Season 7: "Gambit, Part II" (teleplay)
TNG Season 7: "Journey's End" (teleplay)
DS9 Season 4: "Rules of Engagement" (teleplay)
DS9 Season 5: "Looking for par'Mach in All the Wrong Places" (written)
DS9 Season 6: "Change of Heart" (written)
DS9 Season 7: "The Dogs of War" (teleplay with René Echevarria)
TNG Season 4: "In Theory" (written with Joe Menosky)
TNG Season 6: "Rightful Heir" (teleplay)
TNG Season 6: "Descent, Part I" (teleplay)
TNG Season 7: "Gambit, Part II" (teleplay)
TNG Season 7: "Journey's End" (teleplay)
DS9 Season 4: "Rules of Engagement" (teleplay)
DS9 Season 5: "Looking for par'Mach in All the Wrong Places" (written)
DS9 Season 6: "Change of Heart" (written)
DS9 Season 7: "The Dogs of War" (teleplay with René Echevarria)