I think AM Hash and Bit-x will cease operation soon or payout in -ve as CEX.io was doing before suspension. The only two cloud mining services that pays out will be www.cloudminr.io and www.cloudmining.website. 
They're not cloud mining services, they're ponzis. They'll remain ponzis until they show some evidence of actually being a cloud mining service and they'll keep paying out until they run off with everyone's money. Also, AMHash will only go negative at the current difficulty if the price of bitcoin drops to around $135. They're positioned far better than most other miners.