Sure, there have been years that the East was better than the West.
In 1998, as most of us know intimately, Tennessee beat Auburn, Alabama, Arkansas, and Mississippi State.
That same year, Florida beat Alabama, LSU, and Auburn.
While Georgia was beating LSU, Auburn, and Ole Miss.
Even Kentucky pitched in that year, beating both LSU and Mississippi State.
The East's overall cross-division record in 1998? 12 wins, 7 losses. Almost a 2-to-1 win record.
That counts as better.
The division did it again in 2008, but that one is less fun for Tennessee fans (we only beat Miss St), so I'll leave out the details.
Fact is, there were a lot of years when the East was better between 1992 and 2008. Some, we were just a little better; others more significantly ahead. It was a long period of balance, with years that went the West's way, and plenty that went the East's way, as well.
It's fiction (and defeatist fiction, coming from a fan of an Eastern school) to say that the East has "never been better" than the West.