Indeed, I have spent a great deal of time with my brother speaking of Christ. He does not demean my point of view, nor do I demean his - nor do either of us demean the view of other Christians.
We are both Christian, our witness is just a bit different - which is o.k. according to Scripture. Thanks for mentioning Apollos, the difference between Apollos and Paul is a good example:
For while one saith, I am of Paul; and another, I [am] of Apollos; are ye not carnal? Who then is Paul, and who [is] Apollos, but ministers by whom ye believed, even as the Lord gave to every man? - I Corinthians 3