First of all the jury is still out on whether even Christians go to Heaven. The Bible is rather ambiguous on the subject. The same goes for Hell. Most of the imagery we have for these places has developed over the years since the Bible was written. Christianity offers salvation it is true, but speculation on the exact nature of that salvation is just that – speculation.
Two thousand years ago Jesus is crucified, three days later he walks out of a cave and they celebrate with chocolate bunnies and marshmallow Peeps and beautifully decorated eggs. I guess these were things Jesus loved as a child.