To the victors go the one post wonders, but let's remember the guys who weren't so fortunate:
Priest #1 acquired Magicbane, but was promptly instakilled by a rabid rat.
Priest #2 was pincushioned by a gnome lord in the Gnomish Mines.
Priest #3 was killed by an ape while blinded by a yellow light.
Priest #4 was killed by a chameleon imitating a warg.
Priest #5 was killed by a touch of death from an ARCH-LICH on level 7???  That was probably a chameleon, too.

But the sixth one stayed up!  He was gifted Vorpal Blade and used it throughout the dungeon, also acquiring the means of reflection, levitation, conflict, and teleport control.  It was at this point that he stumbled into a level teleporter and was presented with a fateful choice: 

"To what level do you want to teleport?"

Answering "99" gets you underneath the Castle, so he sneaked in the back door and allowed the trolls in the throne room to finish off most of the other monsters.  From there, it was back to the Quest and some great dining experiences.  "Welcome to experience level 20.  You feel cool!"  Indeed.

Vorpal Blade has its disadvantages, like "Somehow, you miss the invisible black light wildly" but it is fun to decapitate demon lords instead of just wounding them.  Here's a scary moment:  "The bullwhip wraps around Vorpal Blade you're wielding!  The horned devil yanks Vorpal Blade from your hand!"  Oh, fudge.  Luckily it was cursed to wield that bullwhip instead of turning the beheading tables.

Later our heroic priest became the Envoy of Balance and cut down some shades with a silver saber, but for the most part it was Vorpy all the way.  While trying to find everything else on his shopping list, he got one last treat:  "You unleash a water demon!  Grateful for her release, she grants you a wish!"

He went to his reward with 4769988 points and 105737 pieces of gold, after 81735 moves.