I'd appreciate fallout 2, is that the Las Vegas one?
You can search gog for these game's titles, and discover that Fallout 2
is not the same game as Fallout: New Vegas
I am not familiar with the rest, if I win, please tell me what's left and I'll examine them and decide which one sounds most fun to me.
In general, it's probably not a good idea to create more work for the extremely generous people running giveaways. They might not appreciate that. They might also have listed pretty clear instructions for how their respective giveaways work in their starting posts, so it might be a good idea to just follow those instructions, to make things just a bit easier on them. (Try and put yourself into their place, and imagine just how much hassle and extra communication there would be for each giveaway if multiple people responded like you did.)