Maybe the difference between my thinking and that of other Christians you've heard from is that I operate from the angle of critical thinking, and in doing so, I think it is a fairly vague and ambiguous idea to posit that something superlative like "absolute fairness" can be recognized and equitably evaluated without prejudice.
So no, God isn't "fair" in the sense that those of us living in the West so often conceptualize it as being, according to our modern notion(s) of Ethics.
Take as an example the hurdle that simply quoting the following verse [~ by Paul] poses to us in this regard:
Masters, provide your slaves with what is right and fair, because you know that you also have a Master in heaven. (Colossians 4:1).
Does this verse sound like anything we'd agree with today as expressing inherent fairness? I'd suggest it doesn't for obvious reasons (like the fact that we, today, assume that what is "fair" would be for a master to free his slaves, automatically and unreservedly), and what's more, so very many other examples can, and already have, been cited by so many biblical skeptics over the last few centuries. The book of Job could be another example.
None of this is to say that God is injust, but rather that His Divine Ethics is often over our heads and somewhat alien to how we tend to think about life and social discourse.
Well, people are confused about a great many things these days. That's why I promote education and critical thinking, whether people like it or not.
Semantically speaking, I don't think we can say that God is "fair" in any way we typically recognize and use the term today. Hence, this is one reason so many people are jumping ship from the Christian faith and becoming not only ex-Christians, but angry ex-Christians.
By absolute perception, I mean the ability to perceive in a way that simulates how God, Himself, perceives, which is essentially an impossibility for us lowly humans to achieve all by ourselves.