Some years ago a poll conducted by a major news magazine found that most Americans were sure they were going to Heaven, but most didn't expect to see their friends there. A majority of those polled anticipated that Mother Theresa would make the cut, and a number also cited certain celebrities and politicians whom they thought would qualify.
Sadly, this shows the confusion and the flawed reasoning that go into the most important decision we will ever make in life: the decision regarding where we will spend eternity.
Though this may come as a surprise to many people, Mother Theresa, as wonderful of a humanitarian as she was, did not have any better odds of making it into Heaven than anyone else. Why? Because our entrance into Heaven is not on the basis of what we have done for God; it is on the basis of what God has done for us. That is what it comes down to.
The lowest of the low, if they repent and ask God to forgive them, in spite of what they have done, will be admitted into Heaven. And the best of the best, in spite of all of the good they have done, will not necessarily get in if they have not put their faith in Christ as their Savior. It doesn't matter what we have done, as commendable as it may be. Our entrance into Heaven has nothing to do with good deeds or bad deeds. But it has everything to do with what Jesus did on the cross and our recognition that we cannot meet God on our own merit.