The standard, and again naive, rejoinder in mainstream Christian theology is that God had a pattern for the World that didn't include such types of pain and destruction but that man chose not to follow God's plan (as allegorised in "The Fall" in Genesis). Thus we chose to go it alone, and you can read the various theories on how that has a Universal effect too.
To raise the basic Argument from Suffering you really should look past the first-tier argument and present it anticipating The Fall.
In my limited understanding suffering appears out of the axioms of free will. To make us human, with the ability to choose to love, choose to care, choose to follow God or not, we require free-will. Otherwise it's just "echo 'i love you'" rather than a genuine emotion.
Your question should be "is it better not to create our Universe, with the possibility for love, if there is also a possibility of suffering". You may come to the same conclusion, that a benevolent being shouldn't turn Creator when faced with those possibilities ... but then if they hadn't you wouldn't be here to make the objection.
tl;dr "The Fall" and "free will" are the standard, Biblical, Christian counter-arguments that stand against Suffering and allow for a loving, benevolent God to be creator of a Universe such as ours.
The mainstream Christian theology is that leprosy, and such diseases came in to the world after, and as a consequence of, The Fall. That if we'd chosen God's way we wouldn't have such things.
>So God inflicted leprocy on humanity //
God created a Universe with free will for man rather than creating a fancy automaton. Mankind chose not to follow God's precepts, the consequences being that disease, pain and suffering entered the world.
It's like if I serve you a hot drink. You can choose to cause pain and suffering with it - throw it at someone, say - or you can follow my instructions to sip it slowly, let it cool and enjoy it, share it. I can't serve you a hot drink without the possibility that you will abuse it, unless I make you into a "hot drink robot" with no free will.
You could couch that as God inflicting the possibility of suffering in order to allow the possibility of beauty, love, passion, humanity.
Of course, I don't think the universe exists to love god, so much as the universe is "god" playing with itself for entertainment.
People have been saying the same things for 2,000 years. The only development is that we can say it's been longer now.
Edit: Oh, you edited your comment to say something different. I guess this comment doesn't make a lot of sense as an answer now.
If something bad happens to you it is not because God wants you to suffer but because God has given evil dominion over this place in order to facilitate free will and choice.
God wants to be reconciled with every person but also wants that reconciliation to be chosen and not coerced.
The suffering of innocents is just an extension of this idea.
The Book of Job in the Bible for example posits that God is almighty but not at all fair. He basically causes Job to suffer on a whim. Not out of some kind of theological necessity, but simply as a cruel experiment. There is no paradox here, because there is no claim that God is always just and benevolent.
This isn't technically true. What God does is choose to not prevent Satan from testing Job. I'm not making a judgement about whether this would be considered cruel or not, I just want the facts stated clearly.
And, Job himself said, "Though He slay me, yet will I trust in him" (Job 13:15).
I know that I'm stepping on thin ice here, but: My son does not want his teeth brushed. He absolutely hates it, because he does not yet understand that this pain is way lesser than the pain and treatment of tooth decay. So, I still have to do this to him, at least twice every day, because it is necessary.
I DONT mean to say that bone cancer might be good for something eventually, but; if it were, then we might not understand it, because we don't have neither control nor insight over the future.
In polytheism the universe is not chaotic and meaningless - things to not happen at random, but because the gods willed it. But the gods does not always act for the benefit of humans, so the universe is not "fair".
If something bad happens to you, is it really a consolation that it is because an allknowing and just God wants you to suffer?