Okay, there's no doubt that Sue's all-time favourite character in the "Doctor Whoniverse" is Davros... creator of the Daleks. Second to him is his creations... the Daleks themselves... but she also has a big soft-spot for The Master... The Master is another Time Lord (like The Doctor,) who is manic and unstable... and generally a real baddy.

Now Sue is relatively new to the "Whoniverse", so her "Master" is the new one WONDERFULLY played by actor John Simm, but I do remember the "earlier" versions which were a little more in the lines of bad guys like Ming the Merciless... but while looking into his character, I ended up at "Wikiquotes" and found...

#13: From Terror of the Autons...

"I am usually refered to as the Master... universally."

#12: Also from Terror of the Autons...

The Doctor: "You've come here to kill me, of course?"
The Master: "But not without considerable regret."
The Doctor: "How very comforting."

#11: From The Dæmons...

"I only need two things. Your submission and your obedience to MY WILL!"

[Editors Note: Oh, how often Sue's uttered this line... and all before she knew about The Master!]

#10: From The Claws of Axos...

[On how to survive a nuclear blast...]

"You could take the usual precautions...sticky tape on the windows, that sort of thing."

#9: From The Deadly Assassin...

"You do not understand hatred as I understand it. Only hate keeps me alive. Why else should I endure this pain?"

#8: From Planet Of Fire...

The Master: "I am the Master!"
Peri: "So what? I'm Perpugilliam Brown, and I can shout just as loud as you can!"

#7: From Utopia...

"Killed by an insect! A girl! How... inappropriate."

#6: From Utopia...

"Anyway, why don't we stop and have a nice little chat where I tell you all my plans and you can work out a way to stop me, I don't think!"

[Editors Note: Don't you wish ALL villains realised this?]

#5: From The Sound of Drums...

The Master: (Talking on the phone) "Doctor?"
The Doctor: "Master."
The Master: "I like it when you use my name."
The Doctor: "Well you chose it. Psychiatrist's field-day."
The Master: "As you chose yours. The man who makes people better, how sanctimonious is that?"

#4: From Utopia...

The Master: "Use my name."
The Doctor: "Master... I'm so sorry."
The Master: "TOUGH!"

#3: From Utopia...

"End of the universe, have fun, Bye bye!"

#2: From The Sound of Drums...

[while watching the Teletubbies]

"Have you seen these things? This planet is amazing. Televisions in their stomachs, now that's evolution."

#2: From Last of the Time Lords...

[Broadcasting to the entire Earth... which of course he has enslaved...]

"Citizens, rejoice! Your lord and master stands on high, playing Track 3!"

(He plays I Can't Decide by the Scissor Sisters).

#1: From Last of the Time Lords...

[On board a flying ship, said to his wife while looking over the Earth which is about to be attacked by things he controls called the "Toclafane"...]

"Shall we decimate them? That sounds good, nice word... decimate. [To the Toclafane]Remove one tenth of the population!

Bonus: ...and from Logopolis...

[Editor's Note: This one HAS to be Sue's favourite...]

[The Master broadcasts to the entire universe from a radio tower"]

Peoples of the Universe, please attend carefully. The message that follows is vital to the future of you all. The choice for you all is simple; a continued existence under my guidance or total annihilation.

[Editors Note: As stated before, another "Sue" line... one I know she'll feel The Master stole from her!]