Which daughter was most evil and responsible for Lear's demise?

From my perspective it was anyone's fault but Lear himself responsible for his demise. For the reason of his foolishness and being blinded by lies. In my opinion it was both Goneril and Regan was evil even though Regan kinda was always trying to out do Goneril each of them knew what they were up to when they slickly professed their love for King Lear. Cordelia although she knew the consequences of what would come she told the truth of how she felt in which she stated that her father could not attain all her love, that he may only get some for she pledged half her love to her husband and her father. Regan and Goneril prefered to flatter him even though they knew they bearly had love for him at all.
They treated him badly and made the servents disrespect him and do not obey his orders.Both Regan and Goneril were only concerned about their wealth and nothing else. They could of cared less about Lear's welfare, they even went to the extreme of trying to scheme a wayso that he could not change his mind about the division of the kingdom. Both only cared about themselves, they were evil minded and knew what they were up to from the beginning. But the only person to blame Mostly his King Lear for his fall if he didn't love to have every ones attention and make thing all about him he would as saw past the two face Goneril and Regan.