grammar - Positive and negative clause comparison in the same sentence

What is the right way to perform a positive and a negative adverb comparison in the beginning of the sentence?

As an example, which of the following ways is correct:

1. Similarly to yesterday, and opposed to tomorrow, we are eating dinner together tonight.



2. Similarly to yesterday, and as opposed to tomorrow, we are eating dinner together tonight.


3. Similarly to yesterday, but opposed to tomorrow, we are eating dinner together tonight.


4. Similarly to yesterday, but as opposed to tomorrow, we are eating dinner together tonight.


5. Like yesterday and unlike tomorrow, we are eating dinner together tonight.


6. Like yesterday but unlike tomorrow, we are eating dinner together tonight.

I know that like/unlike are not supposed to be used in case of comparing clauses, or am I mistaken?

Answer

I am unaware of any reason not to use like and unlike in the way in which you have used them here. I'd probably go with "Like yesterday, but unlike tomorrow, we will be eating together tonight."