I don't care about there slimness because they are all three really slim, and i do know the samsung one is slimmest than all of them but it doesn't really matter to me. What matters to me is the picture quality, contrast ratio, Hz, features and their 3D quality please make a little search in all three of them before you answer. I can imagine there are tons of ads for Samsung on the streets but that doesn't make it always the best so please search it first. Also, i would like to know which one has the slimmest border because when you watch 3D and there is quite a big border, it might cut the expansion of 3D effect