Acer... and AC
Almost as important as failure rate is the actual level of service you get when you RMA something. Acer were appalling in that regard when my netbook died - it took 6 trips back to the warranty center for them to admit it was actually broken and unfixable, and to replace it...
Also, to the AC whining about not getting an on-site warranty with his Mac... On-site warranties are not very common with personal laptop purchases, unless you pay through the nose for one of those mostly-scam schemes. Sounds to me like you gave them the machine and a week later it was fixed... What are you whinging about? You wanted a courtesy machine for that week? Poor diddums...
Biting the hand that feeds IT
