I stirred up a lot of controversy with my last post. That certainly wasn't my intention. If I wanted controversy, I would have said something like... pretty friggin' scary when Michele Bachmann is declared the "winner" of a presidential primary debate.
Anyway, my point was... write what comes most easily and naturally to you.
Sometimes my writing partner, will say to me, "Let's write this PB in prose." And my response is "Okay, and maybe Derek Jeter should try out for the Jets."
Rhyme is what we do best. Why would we throw our best asset out the window?
When editors read our manuscripts at conferences, they don't say "Wow, what a great plot!" Or "Oh my gosh, I LOVE this character!" They say, "This has a lovely, rollicking rhythm."
Once we are a bit established, then we can experiment with different formats and styles. But for now, we should play to our strengths.