Looking for options to make the UI more pleasant and understandable

We are making a bunch little strategic tools. Most of them are really simple and should be super easy to understand.

One of them is made to execute a comparison of multiple items by pairs.

It's sound easy, but the best UI I could come up is this:

Here the user needs to UPVOTE one of the options in the pair, then the process switches to the next one, and so on.

This UI, feels really weird especially in extreme cases when the content of items becomes very long or very short (like in a the images above). It's simply not sexy at all.

I was hoping to get some sort of guideline or suggestion to get me to the right direction.