I think i'm going to agree with you here on the agility of a cat, but also being able to fly like a bird would be pretty sweet too. Of course, having a venomous bite like a snake could come in handy too.
Damn rep spread, guess that's from not being here much lately and needing to come back and spread some rep. I need to remember to come back to this one.
What's funny is I was talking to a friend about my dog the other day and I jokingly said I lost the only friend who REALLY thought I'm a great guy, because dogs do that, their love is so unconditional. When I saw this thread, that was the quality I thought of and not suprisingly in the least, you had already mentioned it.