This is a twisted time in the format, i can't really recall a time of equal confusion and fear
BF Destroyed/Broke the format and it has caused many to begin playing rogue, disruption and beatdown decks with the new set but still we don't know the big decks yet as prime said When the smoke clears we'll see the biggest decks out there right now. Well we all know ludicargo has much strength and is fast, but as any deck it has one really exploitable weakness, lightning weakness, but not EVERYONE plays lightning and its not the bst type there is, ZapDos's instability proves that, so ludicargo is still a good run of a deck, then we have Blaze, blaze can still work, just it takes far more skill to play than it used to and really only experts can pick it up and make it work.
Deoxys/Metagross died down quite a bit, its unknown to me why it did, but i guess it was because the deck was easy to defeat or just wasn't consistant enough, either way, gardy doesn't have a problem with this deck at all or in anyway, gardy has also risen from the ashes after BF's creation due to it shuts off most of the bigger decks like Blaze's Pidgeot or just about every other thorn in that deck's side, now we've come to Swampert
Swampy, that old titan, it did great at worlds and it's time it was recreated and because it doesn't rely on pidgeot it can do just as well as it used to, possibly faster because of it which makes this deck a force to be very afraid of, though VEX decks just cut right through it like a hot knife through butter its still a powerful deck vs almost anything else, but sceptile, that old rogue power, he can still become powerful but it too requires more skill as with any other deck in this format right now.
This format is a format of skill right now, and the newbies (See My Article) will be crushed
Tom