Wait a sec, buddy. Personally, if God appeared right now and explained his purpose and basically made Himself known, I'd do whatever I could to please Him. So an "unbeliever" does not automatically fall into all the categories you mention above.
But you already know he's not going to do that. Even if He did, what truely makes you think you will do whatever you could do to "please" Him? (That reference there makes me sick, I'm sorry. He's not interested in the desire for you to "please" him, based on the choice of words you have made. Rather, he wants to have a personal one on one relationship with you. He's not interested in "religion" such as working your way to earn your salvation in order to "please" Him. He desires to save you from sin, but you must also have the same desire to be saved from sin.)
Romans 11:6
And if by grace, then it is no longer by works; if it were, grace would no longer be grace.
Ephesians 2 8 For it is by grace you have been saved, through faith--and this not from yourselves, it is the gift of God-- 9 not by works, so that no one can boast.
God showed his power many times throughtout the old testament, such as God lead Moses and his people out of Egypt. They saw God parted the waters and they crossed, they saw God closed the waters and drowned Egypt's army. They all saw the plagues and diseases that was upon egypt. They watched all the firstborns die throughout egypt, let alone saved the ones who had their doors marked with the blood of the lamb as the angel of death passed over them. They were fed mana and water that sprang from the ground for them to drink. They saw God turned moses staff into a snake while the Pharoah's wizards turned theirs into snakes and Moses' snake swallowed them all.
All the while and even after all they have seen, man still harden their hearts against God. Man are unsatisfied with anything and everything. Even when Moses lead his people across the river, the Egyptian army in hot pursuit, man complained that God has failed them as they are about to be slaughtered by the army and said that Egypt was a much better life for them than being dead in the desert.
Even when Moses left the people to go up to the mountain to receive God's laws, people complained that life where they were is awful and Egypt was better, then later said Moses is dead and God has failed them. So they said, "Let us create a new god, one that we know will never fail us" and they created a COW and worshipped it. They even killed a human being on it as a sacrifice.
Then Moses returns and sees what they have done, you know what he did next, he smashed the stone tablets and as a result, the earth opened up and swallowed all those who turned their backs on God, (especially those were ungrateful of everything God has done for them) sparing those who wanted nothing to do with their activities.
Jesus showed his miracles to the people. He healed the sick, raised the dead. He walked on water, he turned water to wine. Man still hearten their hearts and they arrested him, turned Him over to the Romans, they begged for the life of a murderer to be spared and left Jesus to rot in jail. They watched Jesus being crucified and they cheered when he was dead. They even mocked Jesus and said, "If you are truely the Son of God, spare yourself and come down from the cross! Heal thyself!"
Even when Jesus rose from the dead and 500 witnesses saw him after the resurrection. Many still did not believe and hearten their hearts against God. The disciples performed miracles even long after Christ returned to heaven, man still didn't believe.
Finally, Jesus himself said....
John 4:48
"Unless you people see miraculous signs and wonders," Jesus told him, "you will never believe."
(Whole Chapter: John 4 In context: John 4:47-49)
It's hard for me to grasp the concept of the God in the Bible, but that doesn't mean I don't believe. I'm just waiting for the time to come when all will be known - then I'll know for sure what and how to believe. Just seems to make more sense to me that way, instead of trying to interpret writings that are claimed to be inspired by God, but knowing mankind has been deceiving since day 1....
God is hard to understand because we lack the one thing that will help us understand God and his Word, The Holy Spirit.
John 14:26 " 26 But the Counselor, the Holy Spirit, whom the Father will send in my name, will teach you all things and will remind you of everything I have said to you."
2 Timothy 3:16
All Scripture is Godbreathed and is useful for teaching, rebuking, correcting and training in righteousness,
(Whole Chapter: 2 Timothy 3 In context: 2 Timothy 3:15-17) (Greek: Godbreathed means inspired by the Holy Spirit)
1 Corinthians 2:14
The man without the Spirit does not accept the things that come from the Spirit of God, for they are foolishness to him, and he cannot understand them, because they are spiritually discerned.
(Whole Chapter: 1 Corinthians 2 In context: 1 Corinthians 2:13-15)
Before I open the Bible, I pray that God send the HS to help me understand His word and if I have trouble understanding any particular passage that I read, who do I go to ask what it means? I go to the source, the Holy Spirit. Since the Holy Spirit is my teacher and I rely only in Him to help me understand His word. I do not rely on man at all. He answers me every time.
Give the HS a shot dude, what have you got to lose?
But if you prefer to see to believe than read His word. Then, just wait for the Tribulation to come. From there you can decide what to believe. But it won't be fun at all during the next 7 years.
Yizuman