im using the otis elite kit too. thats the only kit ive used so i dont know what to compare to. it seems to work good to me. only thing is the special patches are hard to find and pricy for me.
I use Dewey and like them a lot. Also I always use a bore guide. I know of two gunsmiths that I use that don't recommend using a carbon rod because they believe they can do damage to the barrel.