That's a tough one on both counts. I've played some really great games of Werewolf all around.
If I really had to choose my favorites to play, it'd be 2 of the games from 10KI:
PAWHUGGERS and
Ghostbusters. The former because it was basic Werewolf...but the bad guys were the villagers and the good guys were the werewolves (so a fun role-reversal). The latter because it played with some fun caveats:
*Every good player (aka a Ghostbuster) could scan or defend for a single night. If the ghosts chose not to kill anyone that night, any scans made would be useless because good or bad would come up as a "ghostbuster." But if any Ghostbusters defended that night, they'd have another shot at their power the next night. They could also pass on their power (if not used) to another player if killed, and it would be destroyed if it was passed to a ghost.
*Along with group killing, the ghosts could also see the actions of a player they chose on the same night, but only if they had chosen someone to kill.
So it had fun little caveats and extra paranoia sprinkled in since none of the ghostbusters knew if they could trust their scans or not. It was probably one of the more intense games for that reason.
My favorite games to host come down to 3 games:
*Choose Your Own Werewolf: Until Dawn
The game threadPost game discussion and full story linksThis was my very first experiment with CYOW, and to this day it's the biggest replied WW game in both Wintreath and even 10KI history. It was exciting to host for the most part, and is a success I'd like to replicate some day. It was also one of the first games (Santa's Apprentice being the other) Where I really had fun making a longer, more detailed story that played out over the game.
*Taco Island's/Wintreath's Got Talent (+Champions Edition)
Original 10KI gameWintreath's version for WW2Champions Edition - Wintreath's 4th CYOWThese were a favorite of mine to host mainly because each scenario was like writing up a screenplay. It was fun having a game with grumpy "judges," I loved the talents that people sent in for when they were lynched, and overall I just had a really great time. My one thing I'd change with this is keeping the theme, but also keeping the more basic roles (I think the addition of the Gambler in the last one made it difficult).
*Super Werewolf Bros + Duck Hunt
https://10000islands.proboards.com/thread/30809/werewolf-super-mario-duck-hunt?page=1This was a game that was fun to host on here, but my god was it phenomenal to host on 10KI. It had 21 players: 4 bad guys (the Koopalings), 4 power role good guys (Seer Peach, Defender Mario Bros, later Seeker Zelda), 4 neutral roles (Duck Hunt Dog which was a sort of Assassin and 3 Ducks which were sort of random item droppers - Duck 1 would randomly negate a power each night, Duck 2 would randomly give complete protection (scan, kill, defense nullifying) to a player each night, and Duck 3 could use a night (up to 3) to pick a player, and that player would be immune to votes that coming day.
It was also nice because during each night, they'd have some sort of item they could choose to use...basically a scenario each night. During one of the day phases somewhere in the middle, I even split the players into teams and had them both vote for people in their teams...one team had to choose someone to play music for Skull Kid (which resulted in a toad singing Let It Go and being killed when Skull Kid crashed the moon on him), and the other team had to choose someone to navigate the Lost Woods maze (which they were successful and even got the Lens of Truth).
I also got to do a lot of really fun cameos such as a Futurama styled conversation with characters like Phillip J. Toad, Professor Toadsworth, and Toadanga Leela...basically it was an excuse for a lot of known characters as Toads, with Toad names.
It's one I'd love to host again sometime on here on a similar capacity as I did on 10KI.