Pond Bottom: rocks or no rocks?

I had to make this decision last week as the guys were finishing up my
pond rehab. They asked me if I wanted the bottom of the pond rocked
and of course, I said No. The size rock was 1 - 2 inches. This was the
size rock that was in my veggie filter - that was a devil to clean out
and remove the rocks.
I do think it looks better when the bottom is rocked using Large rocks
as opposed to using gravel. I'll revisit this subject when the weather
turns a lot cooler.

Here are some pictures of the rehabbed pond: (Not in final yet)
http://community.webshots.com/user/nedra118

Nedra in Missouri
zone 6