You mean Hakuba? Or Nakamori?
I agree on Nakamori but Hakuba is close to catch him several times.
But I agree, normally the highlight of both series are when they face each other.
It's a shame Aoyama didn't think of that earlier instead of making Conan. Now he will milk the cashcow forever and ever (he said one or two years ago he's only half done with Conan).
Main thing that bothers me in Conan is that time doesn't pass by. Ten years have passed and he's still a elementary school kid (and Ran is still in High School). It's pretty obvious fangirls are the ones buying this stuff.