I have to agree with the first poster, I've done the tour 2 times (dont think I did it 3) and had claire one of them, and LOVED her. So just because you didnt enjoy her, doesnt mean she was 'bad' IMO. Did she give you wrong info? or what made her 'bad' to you? Honestly, it really doesnt matter to me, as I know what myself and my huge disney freak friend thought. We both really enjoyed her.
Now the thing I will admit to, and maybe this could have something to do with it. I had claire almost 5 years ago now? at least 4 years. So if you've had her recently, maybe something has changed. She's wasnt young then, so perhaps something has changed in those years.
I remember her name because I enjoyed it so much, and also remember Jim from the railroad tour they do, but dont remember the other KTTK guide. He wasnt 'bad' but just not as passionate or memorable as claire. So just wanted to throw that out there.
And with the amount of info available on the interwebs and places like this, if you do lots of disney fact finding / info gathering, there isnt a lot 'new'they will tell you if you've looked into things like that before hand.