"I have heard a lot of people, pastors, and other christians ect say this and I agree. Jesus Christ was the only God who died to save humanity from sin."
Except for Mithra. Possibly Dionysus, though I'm a bit fuzzy on that one. There's likely a few others too.
"Did Allah die to save the world? Did buddah die for his followers? No."
Allah is your god too dumbass. Allah is a title (meaning, surprise, surprise, God), much like "God" is a title and not a name.
Buddha is not a god, never claimed to be and is not worshiped as one.
"Christianity is the only religion(although I dont really like using the '"R" word) where a God would love his creation so much that he would come to this Earth and suffer like he did and be nailed on a cross you, me, and every soul on the planet."
Dionysus predates your Christianity by quite a few years and was depicted as having been crucified long before you Christians stole the idea.
"Just one more thing, Christianity is a relationship with God. Not a religion."
No, I'm pretty sure it's a religion. You've got that whole belief in deities bit going for you. Pointless rituals abound too. You even have a religious hierarchy in some sects.
"Nor do I consider myself religous."
Because you're too obtuse to know what religion is or because some rational part of you thinks religion is bunk and you have to convince yourself you're not being duped?
"Instead I have a relationship with the one true God."
And I have a relationship with Santa too. We don't speak much any more since I stopped writing him letters when I was six but still, we're bestest buddies.