She went to the party ______ her dislike for the host.

"Although" is a conjunction used to introduce a contrast, but it requires a complete clause following it. The sentence would need to be restructured to use "although" correctly, such as "Although she disliked the host, she went to the party," making it unsuitable for the original sentence structure.

"Even though" is also a conjunction that introduces a contrast, similar to "although." Like the previous choice, it requires a full clause and creates a contrast rather than fitting the original sentence structure. Thus, it would necessitate rephrasing the sentence to be grammatically correct.

"Despite" functions similarly to "in spite of," as it can also indicate an action taken regardless of a negative condition. However, "despite" would need to be followed by a noun or noun phrase, making "in spite of" the more appropriate choice in this context since it naturally fits the structure of the sentence.