I hate to vote against Ted Dibiase, but I too have to vote for Edge & Christian.
Why? Well... I don't think there's ever been a tag team in WWE who has entertained me more than Edge and Christian. From their SPECTACULAR matches (gimmick or other wise), to their silly ass promos... these two guys together, and separated for that matter, are two of the most entertaining wrestlers in the history of the business, as far as I'm concerned. They're also 10944904390 times WWE Tag Team Champions, and they have a handful full of legendary matches under their belt. There's no way I could vote against them here.
And for good measure... kayfabe wise, I just don't see what Money Inc. could do to put E&C down for good. I'm sure the Million Dollar Dream could knock one of them out, but it's so hard to apply that thing and keep in on for a good amount of time in a tag match, especially when you're facing a team with the experience of Edge and Christian. That plus the fact E&C has dozens of ways that could be literally defeat ANYONE in a tag team bout makes the decision that much more easier.