My faith is that we are to ALL love one another regardless (even those who would be our enemy) and it is not our place to "judge" for that is God's final task to perform for us.
Although I do not mind openly discussing my beliefs and foundation in biblical scripture to point out things which are contrary to that, I still reserve the final decisions to Him as it is not my place to do otherwise.
Actions speak more truthfully than words. So it becomes more of a matter of who is acting in accordance with these things, who is living righteously or sinfully, not what they verbally say they believe in and do.
All I know is that the scripture I understand and support (the Holy Bible) does state what the differences are, as far as who is in support of the one true God or not, and it is very clear in the fact that if you are not with Him, then you are against Him because there is no other alternative.
Ultimatley, He will return to correct all these matters. So it comes down to a matter of conscience, whether you have done the right thing or not, we will all be convicted in our hearts to the real truth.