Well, my most significant pair would be Lorielle (female) and Lorienten (male). They represent the main pairing in a book I'm trying to write. (Probably would be more successful at it if I wasn't spending so much time on here.) They carry both weapons and clovers to signify that they're warriors and healers. I've yet to find dogs that fit the other main pairing in my book.

And I'm not sure yet, but I'm beginning to feel that Silverleaf and Goldenleaf are brother and sister. As my signature says, Silverleaf is the protector of the forest, and Goldenleaf, well... I'm not really sure yet... she's strong willed, but playful (hence the angel's wings).

I also have a few literary pairings...
Jane Bennett and
Mr. Bingley,
Romeo and
Juliet,
Galadriel and
Celeborn. I'm sure there will be more to come in the future. (p.s. In my links, the (f) after a name stands for favorite.)