At the moment, my collection is tiny and packed away back home. When I get it out (possibly around Christmas), I'd split it up in the following ways.
Powers of Grayskull: My main focus for this line. He-Ro vs. King Hiss, Tytus vs. Megator. Eldor definitely to be added, and possibly other Snake Men and Preternia Disguise He-Man. At the moment, I'm in one of my "King Grayskull is 200X history only" moods.

I'm also thinking of picking up the Star Sisters and Shokoti, and giving them a Preternian background--given what we know, it's entirely possible. Indeed, Shokoti might be the witch who imprisoned them in the first place.

A Hordak (classic or Spirit) is tempting here, now that I think I can make a strong case that
he was the original Unnamed One. Also, if Granamyr gets deeply discounted on Black Friday/Cyber Monday, he's very tempting . . .
The Classic Era: He-Man and Man-at-Arms vs. Skeletor and Faker. I'd really like to add Teela, Beast-Man, Evil-Lyn, the Sorceress, and Scare Glow, but I consider it far from feasible.
My Favorite Year: Thunder Punch He-Man, Dragon Blaster Skeletor, and Hordak. I'd like to fill up the other 1985 figures, but again, far from feasible at this point.
I'm also tempted to get the New Adventures releases, since I never had any beyond He-Man and Skeletor, and they seem generally inexpensive. If they make Mara, I definitely need her, and then a Galactic Protector He-Man to confront her as Nemesis. I think I'd give Mara He-Ro's sword in that case--it's not quite the weapon I pictured, but it makes a fitting stand-in for the Sword of Hope.
