Some months ago some spammers hacked one of my feedback script on my contact page and used it send spam emails.

I fixed the problem but too late , the damage was done.
My domain name was added in spam filters.

God I hate spammers !

So anyway I'm now changing the domain name of my site.
It's used to sell PC games I'm coding,

The name has to be generic.

I really don't know yet which one to pick.

Which one of those do you prefer ?

P.S. I asked on another forum, got 14 answers and no clear winner.

Do you have any options? It'll be easier to comment on them, and you can go to Seo-forums, questions like these are often discussed there.

Can you give any info? like the topic/site content?

You haven't given us any names to choose between.