The organisation in America called Mensa (for gifted people), last year posted up an elimination contest for what is the considered the best/favourite toys. It started out with 64 toys split up into four Eras, that went 1-on-1 until only one was left (a bit like a tennis tournament, with each round knocking out half of the competitors).

Surprisingly, Transformers ended up winning... not just in its own era, but out of all four eras.
Then again, since only Mensa members could vote, it could be expected that an intellectually challenging toy like Transformers should end up winning.

You can see the highlights of the contest here.