User blog comment:Matt Hadick/Ultimate Kaiju Battle Round 2/@comment-3148529-20130614202651/@comment-3148529-20130615141042

The size difference is definitely an issue, but see my original comment (last bullet point). Sue is the largest complete specimen, yes, but there are other incomplete fossils that might be a tad larger.

I've seen Final Wars, actually (and Keith Emerson did the music btw you should totally listen to the rest of his work), and Ghidorah really didn't impress me that much. Mothra would be a much more formidable opponent.

As for the definition of kaiju, I agree with you there, but it's the decision of Wikia Staff for the purposes of this contest. If T. rex is included in the kaiju group, it simply is. Nothing more to it.