MC Steven's countdown is undoubtedly the best one to me.
The TC 10 and X to I are close seconds.
And of course, I must mention:
Robert Loving Countdown(when it's on, it's ON.)
Yet Another Countdown
Jase's Countdown Thingy
I suppose NG's countdown as well.

Kworb's is good for shock value.
Roger's is good, even if it's not entirely original.

Same with Shade's.
There really aren't many countdowns that are that original or that good anymore. It's sad.
But I will say, in my defense, that I HAVE updated my countdown every week since I debuted it.
