Hell is depicted as different.
Do you want to end up there, if difference is all you seek?
OK, hell is different because it is existence without the presence of God. AS I noted in a previous post, I believe that heaven (in the form of the Kingdom of God) is here, here and now. As such, the relationship with God that I enjoy (and the fulfillment of which, as Rhi states in a recent post, is what heaven is all about) will be different in form after my physical death to that which I enjoy here on earth. It won't be 'better'.
Now perhaps you will simply dismiss these statements as they are from a different 'branch' of christianity but I think these are pretty mainstream.
"heaven is the ultimate end and fulfillment of the deepest human longings, the state of supreme, definitive happiness"
"The life of the blessed consists in the full and perfect possession of the fruits of the redemption accomplished by Christ... Heaven is the blessed community of all who are perfectly incorporated into Christ."
Note 'definitive happiness' 'perfect possession', 'perfectly incorporated'.
The clear implication is that heaven is perfect - so unless life on earth is also perfect (I don't think anyone including christians would claim it is) then heaven is better, because you can't get better than perfect.