If unconditional election is truly unconditional, how is it good for God to personally choose who goes to heaven or hell irrespective of any aspect of a person’s being, sinful behavior or spiritual belief?
It was the Early Church's understanding that man is indeed judged by his/her deeds. That man has genuine free will. Able to choose or reject God. That God does not compel any to be saved.
Irenaeus (120-202 AD) in his Against Heresies - Book 4 Ch 35-38 shows clearly that it is man's free will choice to choose or reject God.
Chap. XXXVII. — Men Are Possessed of Free Will, and Endowed with the Faculty of Making a Choice. It Is Not True, Therefore, That Some Are by Nature Good, and Others Bad.
1. This expression [of our Lord], “How often would I have gathered thy children together, and thou wouldest not,” (Mat 23:37) set forth the ancient law of human liberty, because God made man a free [agent] from the beginning, possessing his own power, even as he does his own soul, to obey the behests (ad utendum sententia) of God voluntarily, and not by compulsion of God. For there is no coercion with God, but a good will [towards us] is present with Him continually. And therefore does He give good counsel to all. And in man, as well as in angels, He has placed the power of choice (for angels are rational beings), so that those who had yielded obedience might justly possess what is good, given indeed by God, but preserved by themselves. On the other hand, they who have not obeyed shall, with justice, be not found in possession of the good, and shall receive condign punishment: for God did kindly bestow on them what was good; but they themselves did not diligently keep it, nor deem it something precious, but poured contempt upon His super-eminent goodness. Rejecting therefore the good, and as it were spuing it out, they shall all deservedly incur the just judgment of God, which also the Apostle Paul testifies in his Epistle to the Romans, where he says, “But dost thou despise the riches of His goodness, and patience, and long-suffering, being ignorant that the goodness of God leadeth thee to repentance? But according to thy hardness and impenitent heart, thou treasurest to thyself wrath against the day of wrath, and the revelation of the righteous judgment of God.” “But glory and honour,” he says, “to every one that doeth good.” (Rom 2:4, Rom 2:5, Rom 2:7) God therefore has given that which is good, as the apostle tells us in this Epistle, and they who work it shall receive glory and honour, because they have done that which is good when they had it in their power not to do it; but those who do it not shall receive the just judgment of God, because they did not work good when they had it in their power so to do.
Justin Martyr - First Apology - Ch 56-50
Chap. XLIII — Responsibility Asserted.
But lest some suppose, from what has been said by us, that we say that whatever happens, happens by a fatal necessity, because it is foretold as known beforehand, this too we explain. We have learned from the prophets, and we hold it to be true, that punishments, and chastisements, and good rewards, are rendered according to the merit of each man’s actions. Since if it be not so, but all things happen by fate, neither is anything at all in our own power. For if it be fated that this man, e.g., be good, and this other evil, neither is the former meritorious nor the latter to be blamed. And again, unless the human race have the power of avoiding evil and choosing good by free choice, they are not accountable for their actions, of whatever kind they be. But that it is by free choice they both walk uprightly and stumble, we thus demonstrate. We see the same man making a transition to opposite things. Now, if it had been fated that he were to be either good or bad, he could never have been capable of both the opposites, nor of so many transitions. But not even would some be good and others bad, since we thus make fate the cause of evil, and exhibit her as acting in opposition to herself; or that which has been already stated would seem to be true, that neither virtue nor vice is anything, but that things are only reckoned good or evil by opinion; which, as the true word shows, is the greatest impiety and wickedness. But this we assert is inevitable fate, that they who choose the good have worthy rewards, and they who choose the opposite have their merited awards. For not like other things, as trees and quadrupeds, which cannot act by choice, did God make man: for neither would he be worthy of reward or praise did he not of himself choose the good, but were created for this end; nor, if he were evil, would he be worthy of punishment, not being evil of himself, but being able to be nothing else than what he was made.
The following website
A comprehensive look at Predestination vs free will presents the case for free will in man.