1 CORINTHIANS 6:3 Know ye not that we shall judge angels? how much more things that pertain to this life?
This passage is interesting. "We shall judge angels", it simply states and not providing any elaboration.
In the New Testament, the term "angels" refers to a messenger or an agent sent by other person. The KJV uses this term 186 times, translating it as "angel" 179 times and "messenger" 7 times.
There are "angels" of both the good and the evil. Here are two verses that make it very clear that the Bible mentions evil angels. (I believe these are the angels that betrayed God with Lucifer.)
REVELATION 12:7 And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels,
2 CORINTHIANS 12:7 And lest I should be exalted above measure through the abundance of the revelations, there was given to me a thorn in the flesh, the messenger of Satan to buffet me, lest I should be exalted above measure.
Even though I assume it's likely that we would assess the good angels and honor them for everything they accomplished for our benefit, I don't think that makes much sense. It would make more sense to assume that we would serve as the jurors in a "jury trial" for the evil and rebellious angels.
Another reason is the length of time God has let this world be filled with suffering and distress. God wouldn't be just to "tamper with the jury" if we were the judge and jury. God cannot simply intervene and make changes for the sake of justice and equity for the bad angels on trial. We as human being have been granted the right to make decisions and to follow whoever we like.
Finally, mankind will realize how foolish it is to follow anybody other than the Lord Jesus Christ, and the rebellious angels will face judgment. When that happens, God will wipe away any tear, take away any distress ever felt, and put anything back in its proper place.
I therefore foresee what the jury -- i.e., mankind -- will choose.
SAY THIS: The Bible tells I will judge angels.

