Though the Silvestro's did well with Polistall in '07, I gotta jump in and give credit where it's due since Jake Burt won Regionals in 2006 with it and can be considered the creator of the deck. Though he doesn't play anymore, Jake was -- in my opinion -- one of the best players the game ever had and the closest thing I can claim as a mentor.
Jake Burt definitely was a great player, a great rogue player indeed.
Flariados ran 4 Flareon ex, 1 Espeon ex, and sometimes another tech ex (Crawdaunt or HP Mew). Not quite as reliant as other decks on ex's, but kinda mid-range. I debated putting it on that list, heh.
I could have sworn Flariados took advantage of most of the main eeveelutions. Vaporeon to force the opponent to shuffle for a new hand, Jolteon for the added spread damage, Flareon as the main attacker.