At the website, Rethinking Hell, you will discover a serious and nearly always very reasonable approach to the difficult and demanding topic of hell and how Christians are to understand the Bible and the history of interpretation. At the site there is this wonderful diagram of options:
Notice the three variants in the Traditionalism corner: some see the wicked as being dehumanized, which approaches Conditionalism because it it is nearly destruction; the reconciliationist view emphasizes the wicked continuing to choose hell; the separationists emphasize the total subjugation of the wicked.
What is the evidence in the Bible or the argument that leads you to your view on these matters?
The conditionalist contends that immortality is a gift from God, not a right or an ontological property of humans. Immortality is a gift granted only to those in Life himself, Christ (2 Tim 1:10).
The collection of essays on Conditionalism I reading (and using) is called Rethinking Hell: Readings in Evangelical Conditionalism.