Poem or Doggerel?

I can observe the voices rise and swell
defining verse, and what is doggerel;
while others, with hardly time for pause,
proclaim that art is subject to some laws
not stated in plain, ordinary terms.
But what can I (and other suchlike worms)
declare anent a subject of such heft?
With all the force that in me has been left
I'll take no cudgels up, nor seek to hide
the fact that here I will not take a side.
Some find the haiku and the sonnet terse,
and think heroic couplets rather worse
than limericks. But, for my humble part,
I'd say that all craft has its art.
(Did I say humble?) Also, every craft
requires a skill not shown by dull and daft.
It's New Year's Eve, I'll head off to my bottle
and leave in peace the ghost of Aristotle.