That’s a tough one!

Dustin Hoffman looked fairly attractive and attempted a realistic voice. Robin Williams, while hilarious, looked like my aunt Phyllis and sounded like Hugh Grant on helium.

Out of those two, Robin Williams was more appealing.
Tyler Perry- Madea for the win though.

Matt Lucas as Vicky Pollard, or David Walliams as Margaret Blackamoor.

Lemon and Curtis were deliberately very broad so I find them the most effective. In terms of believability, I don’t find any of the three very compelling as women.

Norma(n) Bates

@ucancallme_Al Good one! :) Glad you’re alive, I heard the variant is really hurting the UK. Be safe!

Dustin Hoffman, hands down.

Robin used a lot of latex.

If we’re venturing beyond the original question, I have to say Bugs Bunny in drag is a thing to behold.

Lemmon/Curtis were farcical.
Williams was slapstick.
Hoffman was comedy, but not over the top.

Best performance by a man as a woman? Jaye Davidson in The Crying Game.
I know a lot of people who screamed.

@filmfann You are so right! And trans man was Hillary Swank as Brandon Teena in “Boys Don’t Cry.”

@janbb Also Linda Hunt in The Year Of Living Dangerously.

Actually, in terms of fanciability…Jeff Bridges brief cameo as a hot blonde in Thunderbolt & Lightfoot.
That bitch turned me on :D

@KNOWITALL Meh, I’m bulletproof baby ;-}

Best performance by a woman is a separate award.

Special award to John Lithgow in The World According To Garp.

@filmfann Unforgettable Roberta!

Does Divine count?