Which laptop is better to buy between lenovo and Sony(vaio)?

Lenovo

Lenovo.

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Sony because lenovo is slower

My 2011 Lenovo G555 laptop after 3 years had video chip detachments from heat. A common problem that repairs could not cure. Bought new motherboard, now use only with active cooling fans so it remains under 92*F.
No experience with a Sony laptop, but no one I know has one. Acer, HP, Samsung, Dell machines seem just fine.