Is a big air intake better then a small air intake pipe
Doesn't matter. Only so much air will go through the throttle body.
It's not clear what your question is. But the basic equation is: More air + More fuel More power The question is: How to do it right? E mail if you're interesting about the subject and describe the Accord power train specs. and what is (are) your objective(s)?
The OE pipe was designed to do the job why do you think something different will change things?
