Much as I hate to enter into any kind of my culture is better than yours discussion, when it comes to comparing the poetry of the English-speaking world with the Japanese form, Limericks kick ass.

I took this up with a Japanese Oracle DBA I met in a bar in North Sydney once, and although his English was pretty poor, my Japanese vocabulary is about 3 words, and I had had more than six beers, he seemed to agree*. Haiku as a poetic form is almost totall inaccesible to the average person, either in English or Japanese. A limerick, on the other hand, is usually constructed of simple words, has a catchy and memorable meter and rhyme, and most importantly, is smutty.

Unfortunately, the cultural elite choose to largely ignore the tremendously popular and catchy style of limerick poetry, in favour of unstructured, free-form modern poetry.

I know I'm going out on a limb here, but I think this is one of the main reasons that Japan lost the war.

* maybe he was just trying to get rid of me
There was a young poet from Kyoto
Who's performances noone would goto
  He said with a tear
  if noone will hear
The paper will send back my photo

(pretty lame, I know)