Keep in mind that I haven't read many storygames in the past couple of years, so I'm going from memory. (Also, I'm putting them in order of which I think are feature-worthy, not which ones I enjoyed the most.)
Fantasy Adventure:
1. Death Song
1. Necromancer
3. The Order of the Midnight Sun
4. Magus: Betrayal
5. Innkeeper
5. The Tower
Modern Adventure:
1. Mommy, Can I Go Out and Kill Tonight?
2. Vengeance
3. Captured!
4. Tales From The Basement
5. Cryptode
6. The Wal*Mart Game!
Sci-Fi Adventure:
1. Ground Zero
2. Light Space
3. Paraplaniac
4. Mechanised Assault Unit (haven't played - going off what I thought of tsmpaul's other stories)
5. Homo Perfectus 3 (haven't played - going off what I thought of 1 and 2)
6. Ulysses (ONLY because it's a demo, otherwise it would be 2.)
Edutainment:
1. Adventures With Raven
1. The Firebird
3. A Jung Hero's Adventure
4. The Quest For Pegasus
5. The Ramayana
6. Julius Caesar: Stayin' Alive!
School-Based:
1. Fairview Highschool Game
2. JBCS
3. Finals Week!
4. Fairview Highschool Game 2
5. Schooled For Life
6.
Mystery / Puzzle:
1. The Free Hand
Little to no memory of the storygames featured here. The Free Hand was amazing though, don't unfeature it.
Actually, yeah, for all the other categories I don't think it would be fair of me to rank them, I can't remember them as well as the ones above, although I will say Snow should never be unfeatured.