Need ideas for fair giveaways.

So I got 50 people on my whitelist now. Think i'm going to make a group and add everyone on steam announcing i'm starting whitelist giveaways at 100.

Because now i'm solely relying on the level system and I do flash giveaways but that's not really fair with timezones.

How do you do it mostly?

I will post invite only giveaway here tommorow but need paycheck first xD
also feel free to ask for whitelist:
contenders currently:
You giveaway wishlist game
I won a game from you
you make nice comments
you giveaway way more then you win
You are dedicated gamer and give lots of info revolving game, development, betatesting, the devs
Funnies
I like good food

Ok thank you all
http://www.steamgifts.com/giveaway/2HrlN/h1z1