Other giveaway sites

Well, when I started using sites like this - I would prefer game miner. But when steamgifts migrated to 2.0 version, with all awesome features - it's definitely better than game miner (which is semi-abandoned for now). Only one feature that game miner have, and steamgifts don't - it's separate giveaways for gifts and keys. Sometimes it's really sad to giveaway gift and get 15% of CV just because game was in a bundle some time in the past.
Playblink... well, actually I don't like the way giveaways are made on this site. But - it has very nice and friendly communitty in chat, that's the reason I keep visiting it. (Yeah, I know sg have chat in steam, but it's inaccessible without steam client, you know).
Steam companion - some kind of steamgifts-wannabe. Site is not bad though, use it from time to time, but they have a lot of work ahead if they want to compete with other sites.
Galagiveways - almost dead. They promise to migrate to indiegala website, maybe that would make this site more active. Main advantage - you can giveway games on platforms other than steam (origin and desura).
Also, there is some little-shitty-sites, that even don't worth mentionig.

I never win a game in steam gifts ou steam companion bug in game miner i won 4 games.