First is how Mohammed is considered the greatest prophet (if indeed he is this is what my muslim freinds tell me), If the prophet immediately before him Jesus did more and better miracles?
I'll remind you of this the next time when you say that miracles don't prove the prophecy of someone . Back on track , miracles are not everything . If you just read his biography of actual sources , you'd know why he's the greatest of mankind . Oh , and did the Christ silence the most eloquent with the Bible , split the moon , or make 100% accurate prophecies ? Of course I as a Muslim believe that in the true message he couldn't make a false one but that's probably not the case with you .
Second all of God's prophets were spoken to directly by God. As a Christian I find it hard to believe that the last and greatest of all prophets spoke to an angel and not God?(Gabriel from what I've been told)
That's YOUR belief . And I have a feeling this belief of yours isn't even right in the Bible but I'll let that aside since I'm not an expert . Quran says :
42:51 And it is not for any human being that Allah should speak to him except by revelation or from behind a partition or that He sends a messenger to reveal, by His permission, what He wills. Indeed, He is Most High and Wise.
Third what prophecies did Mohammed make?
That would require a whole thread .
fourth No other prophet of God has ever thought he was demon possessed, yet Mohammed did, (from what I've found out). If all other prophets spoke directly to God and Knew the message was from God, then why should I trust Mohammed if he himself wasn't sure the message was from God, and worst still Demon possessed.
When it's new to someone that they see an angel with wings covering what's between east and west , wouldn't they be overwhelmed ? Not to mention that after he found out , his fear was gone and he proceeded to deliver the message .
This is a huge barrier because even if he wasn't or God assured him it was true it has never happened before and it's hard to believe some one would mistake the Almighty with a Demon. How can anyone look at this and say that later he received another message that assured him he was not being possessed if the entity that gave him the message is the one he was doubting (and by extension all who hear this). After all wouldn't the entity if he was a demon just lie and say the message was true any way. The proof that the message was from God has to be outside the message giver to have any credibility. After all the law for the Jews says two or three witnesses are required.
Aside from the already said , can you bring such a message ? If not , then are you telling me God couldn't send a message that is better than that sent by a demon ?
5th If you were trying to convince a Christian about the quran How would you explain the difference in What Jesus taught No divorce one wife at a time, and What Mohammed taught up to 4.
First of all , we don't believe that the current Bible is the original message sent with Christ peace upon him . Secondly , Islam is the ONLY religion that limits marriage to 4 . There is no limit in any other . And when you tell me there's no divorce , that's more of a reason for me to refuse it . Just imagine if life became impossible between the two .