Good question.
My playing cue is a Cognoscenti that I have had for about 8 years. It is 17.5oz, 12.5mm, not sure about the taper, hard moori tip.
My break cue right now is a Predator BK. 18oz, 13mm, hard moori tip. I don't prefer this break cue. I am using right now until a different one comes along. I used to break with a Phillipe sneaky pete and loved it. I also liked the Gilbert break/jump.
As far as Jeanette's cues, I know she used to play with a Jacoby but I am not sure now because of her new sponsorship. The black boxes on her cue are stickers that say Mosconi Billiards.
Sarah