Ensign Ro.
In particular the evil/alternative Universe version, the Intendant. (You do know she’s rather picky about her type of man?).
Or. . . do I vote for Seven?
Or Kes when kitted out in leather? (seeing a pattern here)
NO! Got it.
The Borg Queen in First Contact. Way ahead.
Deanna Troi.
“Captain, I sense … horniness.”
Aw, c’mon guys, did only one of you even ***look at ***Seven of Nine?!?
Marta – bad bad girls rule!
Actual URL+
http://en.wikipedia.org/wiki/Image:Yvonne_Craig_Star_Trek.jpg
Hot, but cold – like a Vulcan who never hits pon farr.
Wow, I never knew the Orion Slave Girl’s name, I had no idea that was Bat Girl. As a young teen, I had a serious crush on Bat girl. 
Yes, she was very hot in her cat suit, but not the hottest or the best looking. All of this is of course in the Eye of the Beholder.
Jim
I’d do 7 of 9, and I’m not even a lesbian!
Janeway?
I’m pretty sure that was a Twilight Zone episode. 
If Geneviève Bujold had taken the job maybe.
Did anyone mention the Borg Queen yet?
Oh yes, I did.
Famke Jannsen as “The Perfect Mate”. I’ll say, yowsa.
Though Terry Farrel in the 'sixties-era miniskirt was damn hot, too.
Nah. Her breasts are abnormally huge.
I’ll second Deanna Troi.
I always liked Tasha Yar (Denise Crosby).
Damn, I went deep and obscure and someone actually got the joke. That is rare.
Thank you,
Jim {link now included to this all time classic episode}
She’s nice looking, but I never liked chicks with implants. 
Uhura all the way, baby!
That was my vote too. Although I was just gonna say the green chick that Kirk banged.
I’ll go with Susan Oliver from The Cage. Slave girl, cowgirl, damsel in distress.
A hottie for all seasons.
While she’s nice to look at–and quite interesting in that scene with Harry in his quarters–I still prefer Troi’s curves.
Terry Farrel by a mile.
Deanna Troi? Are you people high? “Captain, I sense…confusion…”
Hoshi ot T’Pol.
No, wait!
Hoshi AND T’Pol!