What this is actually comparing
There are two things going on in any question of this kind and they are usually run together. The first is what you want from a partner, which you know and can describe. The second is what a particular sign is said to be like, which is a paragraph written centuries ago about a twelfth of the population.
This page compares those two paragraphs. It matches your stated preferences against the traditional descriptions and reports which one they resemble. That is a genuine result about you and it is not a result about anybody else, because nobody else has been consulted.
Popular compatibility writing skips the distinction entirely and moves from your answers to a claim about a real person you might meet. There is no step in the reasoning that permits that, and the omission is the reason so much of the genre is unusable.
Why a sign is a poor filter for a person
Take the result at its strongest and suppose the description is accurate on average. It still describes an average across a very large group, and the variation inside the group is far wider than the difference between the groups. A description that holds loosely for many people holds tightly for almost nobody.
The tradition itself makes the point without meaning to. The sun sign is one placement out of ten, and astrologers routinely say the Moon and the rising sign carry more of ordinary behaviour. Two people born on the same day, hours apart, get different rising signs and, often enough, different Moons.
So a birthday narrows the field by a twelfth and tells you almost nothing about the person standing in front of you. It is a filter that discards eleven twelfths of the possibilities on evidence that does not support discarding any of them.
The part of the result worth reading
Strip the sign off the answer and something useful is left. The questions ask whether you want an argument finished quickly or thoroughly, whether you would rather be admired in public or noticed in private, how much time apart is right, what would end it fastest.
Those answers, laid out together, describe what you are looking for more precisely than most people manage when asked directly. The sign at the top is a label attached to that description afterwards. If the label is the only part you keep, the page has been a waste of twelve questions.
If you already know their sign
The obvious next move is to look at the two charts rather than the two birthdays, and the honest version of that is synastry, which compares the angles between one chart's planets and the other's. It requires two birth times and it produces a much less quotable answer than a grid of twelve by twelve.
What it will not produce is a verdict. The tradition describes tensions and easy contacts, and it has never claimed to say who should be with whom. Any page that answers that question with a percentage has invented the number.
Questions people ask about this
Does this tell me who to date?
No. It matches what you said you want against twelve short descriptions and names the closest. It has no information about any actual person and makes no prediction about any relationship.
Should I rule out a sign because of a result like this?
No, and the arithmetic is against it. A sun sign covers roughly a twelfth of everyone alive, and the variation within that group is much larger than the difference between groups.
My partner's sign is not the one I got. Is that a problem?
It is the usual outcome, and it says nothing. The result reflects a generalisation, not the person you are with, who has nine other placements and a life the description has never heard of.
Are some sign pairings genuinely compatible?
The tradition describes easier and harder contacts between elements and modalities, and it applies to whole charts rather than to sun signs alone. Treated as a filter on birthdays it has no support at all.
What is synastry?
The comparison of two complete charts, looking at the angles between one person's planets and the other's. It needs both birth times, and it describes tensions and affinities rather than issuing a verdict.
So the result is meaningless?
The sign at the top is a game. The description of what you want underneath it is not, and it is the part worth keeping.