Hard to decide...???
Humm...Tapping fingers on table... waiting for inspiration...
Let's see:
The Christian religion believes the heavenly Father sent his own Son to die for everyone to remove their sins and allow me a way into into his kingdom by grace...
As opposed to:
The religion of Islam is on a worldwide conquest to subjugate (submit) the world by terror and the sword...Heaven is only guaranteed if you blow yourself up as a martyr and kill as many infidels as possible...
Like I said, it's a tough call...
(Rolling eyes...)
So, if someone believes in a heavenly Father who hasn't sent His own Son to die for everyone to remove their sins and allow me a way into into his kingdom by grace, that God is a lie?