Haha well... the majority of them say that the Honda is better because of:
8k rev limit
mpg
reliability (which IMO isn't true at all.)
looks (most of them are wagon haters)
better handling (arguable. I know...)
and resale value
The only bad thing other than those that they say is, "It just has too much power for its own good."
*None of that is my opinion though.
I love the people on the civic forum I go to... but I don't ever agree with the Si > MS3 threads when they come up.
The Civic si is a really fun car but I just got tired of the 3rd gear problem and reving to 8k just to make any decent power.
When I got my MS3 I just went for a "test drive" to see what all the hype was about. It was kinda funny because about 3hours later I'm driving the MS3home leaving my SI with them. They gave me 20k for the si and it had 6000 miles on it, I paid like 22.5k OTD for it.