The sentences are okay, but as others have suggested, the commonly spoken or colloquial forms are often different. We might see your examples used in a poem, an obituary or a wedding vow etc..

Better to use "the way" So "I will never love anyone the way I loved you" that's the way it's usually said.

Grammatically they seem OK, but all seem a little odd to me. I would not us 'as' - I would use 'the way', or 'as much as' - perhaps to avoid the ambiguity?