Thiests - Assuming God exists, why should we worship him?

[Thor]

1-I would say he's homicidal, but where you see God acting to kill people I see nature and people killing people.

I would agree that he would be a homicidal maniac. But what does the second part of your response have to do with anything? It was your deity who directly killed people when he supposedly flooded the planet. It was also your deity who directly killed the first born child of everyone in town when the Pharoah refused to free the Hebrews. These were not acts of "nature".

2-poor analogy, the problem with it is that he does give answers to those who listen, and he does heal those who show faith, not beg

No, it's a perfect analogy. Many of the faithful pray for their sick children to be cured. And many of these children die. No cure. No response. No reason is ever given. And the nonsensical "he does give answers to those who listen" is nothing but a meaningless platitude. If your deity truly exists he is a lousy communicator.

3-It would definately make me question and distrust , but I would stil love him, he's my father.

Then why don't you question and distrust "God"?

4- See 4 from the above quote

I'm not sure what you're referring to here.