Poetry is a union of form and content. Putting something into the form of a haiku is essentially trivial, so most haiku writers focus on content instead; however, your content should also be familiar to everyone reading, so you can't win there. (Also, #2 and #4 have 6 and 5 syllables in their respective second lines.)

Limericks would be good, if you could pull those off. Obviously, it would be harder. That's sort of the point, though: to impress people with form, you have to do something that isn't easy to do. On the other hand, if you write 101+ limericks, you'll probably be good at limericks by the end.

(Half good; I'm told the other half of limerick writing is that they have to be dirty and/or funny, ideally both.)