Depends on what your talking about. But i'll take
Delicious yet Self-Destructive
Cordless Mouse (needs batteries) Or Corded Mouse
IRC.
GCD(2m+1, 2n+1) = GCD(n-m, 2m+1) if m < n OR x2n = (xn)² and x2n+1 = x × x2n?
Ha, you used the multiply symbol instead of another x. Nice.
I like the x2n because I have NO IDEA wtf it is (assuming GCD stands for Greatest Common Denominator)
Windows Only: alt-0264 or alt-661-decimal point-alt-659?
I choose ò.ô.
Job or jorb?
Job :/
Cute lil baby kitten OR adorable, joyfull puppy?
puppy?
5 Plasma Grenades or 10 Regular Grenades
10 reg.
Speakers or head-phones?
For computer: Headphones
For a stereo: Speakers
Winblows(any version) or Linux?
Windows
Kleenex or Tissue?
Kleenex
Low Quality Tablet, Decent Mouse, or Very High Quality Trackball?
(for art)
I don't really do art on the computer but i'll say the tablet.
Guys or Gals
Friends, or deep relationships?
I'm neutral, and I don't want one anyways, respectively.
Three friends or one love?
18:24, definitely. [ Supposing you mean Military vs Standard, but I prefer AM to PM. ]
(wait, is that 6:24AM vs 6:24PM, or Standard Time vs Military Time?)
Mapping or Modding?
Mapping.
Starcraft or Warcraft?
That's been asked before.
Halo2.
Starcraft 2 w/ Computer or Warcraft 4+5 w/ Computer? ( The 'computers' are advanced enough to be able to run the games smoothly, but are unable to do anything but play Blizzard games. There is no legal trouble, and no one seems to mind that you got stuff that doesn't even exist yet seemingly out of nowhere )
StarCraft 2.
[

Warcraft

]
M16 or Magnum
Magnum.
4 Full Upgraded Ghosts(range, Lockdown, energy, +3wep, +3armor), or 12 No Upgrade Marines?
4 full upgraded ghosts
SCV carrying marine or probe carrying marine?
Probe. [Shield w00t]
Cherry Coke or Wild Cherry Pepsi?
If given a choice between half of a Cherry coke or two Wild Cherry Pepsis, I'd still take the Coke.
Delay or Early?
I'm glad I got it before someone else posted,

Fire Fox! w00t!
AIM or MSN Messenger?