ARG!
519160 AlStar the Slayer (level 26, 0/261 HPs)
Began as a Grey Draconian Fighter on Apr 18, 2009.
Was the Champion of The Shining One.
Slain by an iron troll (15 damage)
... in Pandemonium on Apr 22, 2009.
The game lasted 11:38:58 (105957 turns).
Well, Trog finally got even with me for leaving him. I ran into a Pan lord that cast torment and also summoned fiends who also cast torment. After hitting 13 HPs, I decided that maybe I'd leave him be... so I run away, and what happens? Trog decides that THAT moment would be the best time to show his displeasure at my leaving him for a more demon-killing focused god - summons trolls and ogres all around me. Berserker Iron Trolls NORMALLY wouldn't be a problem, especially since I can teleport myself, but at ~25 HPs...
I'd collected runes from Snake, Swamp, Vault, Dis and Tartarus and one of the Pan runes.
My favorite bit of equpiment:
a - the +9,+9 Blessed Blade (weapon)
(The Shining One gifted it to you in the Ecumenical Temple)
It has been blessed by the Shining One to cause great damage to the undead
and the unholy creatures of Hell or Pandemonium.
This was originally a katana (first one I've ever seen, actually) that I found in a shop. Bought it for 660 gold, turned out that it was a +6,+5 katana. Score! Slowly got it up to +9,+9 vorpal, then when I dumped Trog and got high enough with The Shining One, I turned it into a Blessed Balde - thing sliced through demons like they weren't there.
Vanquished Creatures
Ereshkigal (Tar:7)
Dispater (Dis:7)
Mnoleg (Pan)
2 ancient liches (Crypt:5 Vault:

The ghost of puffycloud the Blademaster, a legendary HaMo (Pan)
Boris (thrice) (D:22 D:24 D:26)
Margery (Vault:2)
Geryon (D:21)
6 demon lords (Pan)
...
3754 creatures vanquished.
Maybe I should have just taken Zot, been content with a 6 rune win, but dammit, I really expected to pull off a 15 rune win.
Character's here:
http://crawl.akrasiac.org/rawdata/AlStar/morgue-AlStar-20090422-234720.txt for anyone interested.