For those asking "what core investigator role is Winifred best suited for: Fighter or Cluever?", it appears that she is capable of being built as either one. Similar to Jenny Barnes and Finn Edwards, the Rogue card pool can make Wini into a Cluever (Lockpicks, Lola Santiago) or into a Fighter.
As a Fighter, she can be built in two different ways:
Option 1 - Agility. Built similarly to Finn's fighting style, trying to leverage her Agility (Ornate Bow, Sneak Attack, Backstab).
Option 1 - Strength. Now with Lonnie Ritter and Delilah O'Rourke as part of the card pool, Wini could be a gun-wielding Fighter as well due to these allies bringing Wini's Strength to 5.
Sharpshooter is an interesting card that helps either of these two combat options. Wini now gets to attack using her Agility score instead (which would be 5, instead of attacking at 3 Strength).
Added to Option 1, any Agility boosters would make this even better (The Moon • XVIII, Lola Santiago, Cat Burglar).
If added to Option 2, with Lonnie and Delilah, then Wini would be at a base of 6 Agility, and attacking using that rather than her base Strength of 5. Sharpshooter would also give a +2 bonus from the two Strength boosts that each ally provides. So Wini would be shooting a gun with a combat skill of 8, plus the bonus from the weapon she is using. Pretty good! Checkout my review of Sharpshooter if you'd like to unpack the topic more.
So, what role is Winifred best suited for? I'm going to vote Fighter.
Fighting usually requires high skill tests, and you are rewarded more for over-committing to these tests than compared to clue gathering. Also, a lot of the Rogue weapons reward you for over-succeeding, so you might as well play Wini this way. Otherwise, why are you playing an over-succeed investigator? What's the payoff?
What do you think? Is Wini's "optimal" build to be a Fighter, or a Cluever?
Feel free to share details about strategies and cards that help bolster her "optimal" role.