Most Helpful Girl
I just finished the Witcher series and I liked it a lot. I haven't read the books, so I don't know if there's more to come, but I hope they make more. I also like the Elder Scrolls series. And I'm currently playing Thief (the newest one), and liking it thus far.
Most Helpful Guy
Well since I have been playing games since the Atari and have spanned the eras of Intellivision, Coleco Vision, Commodore 64/128, VIC 20, NES, Sega Master System, Super NES, Genesis, Game boy, Game Gear, Sega Saturn, Game Cube, N64, PC and everything far and in between... Its a bit hard to pick a #1.
Honorable mentions though would include Skyrim, Red Orchestra 2, Resident Evil 4 (GC version), Half-life 1, Team Fortress Classic, Zelda Twilight Princess, Zelda Breath of the Wild, Mortal Kombat II, Mortal Kombat XL, Star Trek Bridge Crew, Unreal Tournament 99 and 2004, original Doom, Beyond Castle Wolfenstein, Airborne Rangers, Secret of Mana...
There's a lot.