Editing Forum:RFC - "that" vs. "which"

{{Forumheader|The World that Never was}}

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{{KrytenKoro|As you all know, the item-type articles that I write are based on a standard format.

However, I recently noticed that I've been using both "which appears in" and "that is found in" for the listing of the games that the subject is in. I've also used both formats on a multitude of articles, so either way, I'm going to have to change a lot.

I don't understand [[wikipedia:English_relative_clauses#That_and_which|wikipedia's explanation of the correct format]], so can people please tell me which version they prefer?}}
{{neumannz|time=02:36, March 28, 2010 (UTC)|text=Examples in the wiki?}}
{{KrytenKoro|Any Heartless, accessory, or equipment page, or any of the properly formatted ability pages.}}
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 {{neumannz|time=02:36, March 28, 2010 (UTC)|text=Examples in the wiki?}}
 {{KrytenKoro|Any Heartless, accessory, or equipment page, or any of the properly formatted ability pages.}}
-{{JFHavoc|time=04:31, March 28, 2010 (UTC)|talk=I'd go with "which appears in", because not all of the items are found.}}
-{{DTN|time=05:00, March 28, 2010 (UTC)|text=Most of the wiki's grammar-related guidelines in the [[KHWiki:Manual of Style|Manual of Style]] follow American English, not British English. For example, we follow the rule of plural possessives, meaning that we use "Ventus's" instead of "Ventus'", "Xemnas's" instead of "Xemnas'", and so forth. Yet, we would use "enemies'" and "weapons'", because they are plural terms. In addition, we add a comma before the final term in a comma-divided list. For example, we use "Ling, Chien Po, and Yao", but not "Flora, Fauna and Merryweather". Both of these grammatical formats are derived from American English format.
-According to Wikipedia, the American English format would use "that".}}
-{{JFHavoc|time=05:04, March 28, 2010 (UTC)|surprised=Oh, I misunderstood what you were asking. I agree with DTN we should use "that"}}