8 – Fields with multiple values

I have content with a lot of information.

Each content type can have more than twenty fields, which I would like to present in tabular form.

Ideally, these options could serve as filters in views.

I would like a solution that allows this data to be imported via feeds.

What is the preferred option?
Create the very many necessary fields or combine them in one?
If the best option is to collect this information in one field, what solution is offered?