God. The Paradox of Excess If I am understanding your argument correctly, I think it takes this form.
1. No one likes someone who strives for omnipotence.
2. No one likes someone who strives for omniscience.
3. No one likes someone who strives for omnibenevolence.
4. God is omnipotent, omniscient, and omnibenevolent.
5. Therefore, no one should like God.
I find this argument quite unconvincing for a number of reasons. The reason I laid out your argument in this way is because of the evidence you provided to make the claims of premises 1-3. You said that no likes a dictator because that is someone who is wishing omnipotence. When it comes to omniscience, you cited the common example of people disliking others who strive to have encyclopedic knowledge. Finally, for omnibenevolence, you said that no one likes someone who is excessively sentimental.
One important distinction I would like to make regarding your argument is that none of the people striving for these characteristics of omniscience, omnipotence, and omnibenevolence have actually achieved it. God, on the other hand, is actually omnipotent, omniscient, and omnibenevolent. For this reason, the inference from premises 1-3 and premise 4 is objectionable. God is not striving for these characteristics because he has already achieved them.
In looking at the examples you cited of people who strive for these characteristics, I see a common theme that also makes your argument objectionable to me. In each of the scenarios you mentioned, the people who are striving for these qualities are performing visible actions that illustrate their strides. They are publicly displaying efforts to be omnipotent, omniscient, or omnibenevolent. God is more mysterious about his powers and He knows that He has already achieved them so he need not present any grandeur displays that He holds them.
The biggest objection to be made here is that, since God already has omnipotence, omniscience, and omnibenevolence, he cannot be equated with those who strive for it and are not liked.