Here’s the trick, honour should only be used if it is a church ceremony. If the ceremony takes place elsewhere then Pleasure of your company should be used instead.

Good luck!
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The phrase, "Request the honor/honour of your presence" however, is only acceptable wording for religious ceremonies in a church. For all other ceremonies and receptions, you must use, "Request the pleasure of your company."
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Either spelling is technically correct so you can go with the one you prefer.

Because the Brits are always right and proper, most Brides choose the U.

BTW, in case you didn’t know (I didn’t).
Etiquette dictates the phrase "the honour of your presence" be reserved for weddings held in houses of worship, while "the pleasure of your company" is used for weddings in other locations.
References :
http://www.formal-invitations.com/invitation-text.html

and I’d hope those aren’t your real names. I’d have to question the parents who named their kid "james jim" LMAO!
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The spelling is not an etiquette issue, but instead a language issue. Oddly, we’re all separated by a common language!
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The old English spellings of "honour" and "favour" are usually preferred. But again this is a matter of personal choice and should reflect the formality of your invitation and event.
References :
http://www.dempseyandcarroll.com/custom.aspx?id=25#honor