Everyone chooses their own path in life.  I'm not trying to convert you.  The verses below are why I am not a Muslim.  You can make your own decisions. 
 

On War
I keep hearing about the peaceful religion of Islam, which is interesting as I certainly found a lot of less-than-peaceful verses when I looked for myself. 

Surah 9:73

O Prophet! Make war against the unbelievers and the hypocrites and be merciless against them. Their home is hell, an evil refuge indeed.
 

Surah 47:4
When you meet the unbelievers in jihad, chop off their heads. And when you have brought them low, bind your prisoners rigorously. Then set them free or take ransom from them until the war is ended. 
  

Surah 5:33-34
The punishment of those who wage war against Allah and his messenger and strive after corruption in the land will be to be killed or crucified, or to have their hands and feet chopped off on opposite sides, or to be expelled out of the land. Such will be their humiliation in the world, and in the next world they will face an awful horror.
  

Surah 17:16-17
When we decide to destroy a population, we send a definite order to them who have the good things in life and yet sin. So that Allah's word is proven true against them, then we destroy them utterly.
  

Surah 8:37
In order that Allah may separate the pure from the impure, put all the impure ones one on top of another in a heap and cast them into hell. They will have been the ones to have lost.
  

Surah 21:11
How many were the populations we utterly destroyed because of their sins, setting up in their place other peoples.

  

Surah 8:12
Remember Allah inspired the angels: I am with you. Give firmness to the believers. I will instill terror into the hearts of the unbelievers: you smite them above their necks and smite all their fingertips off of them.

 

Surah 9:121

Believers, make war on the infidels who dwell around you. Deal firmly with them.

 

Surah 8:36

Make war on them until idolatry shall cease and God's religion shall reign supreme.

 

On Decency
While I am not a Christian, I really feel the Bible got it right in Luke 6:31, "Do unto others as you would have them do unto you".  The Koran seems to have other thoughts.

Surah 8:51

If you fear treachery from any of your allies, you may fairly retaliate by breaking off your treaty with them.

   

Surah 48:29

Muhammad is God's apostle. Those who follow him are ruthless to the unbelievers but merciful to one another.

   

Surah 5:51

Believers, take neither Jews nor Christians for your friends.