Ok, here`s the beef.
Rock is very powerful, and naturally good in a qualifying field where you have to play against random monkeys bith bad decks.
PT Junk is very similar. It depends on what you class as Junk. If Junk means playing with Hunted Wumpus then it sucks. If it means playing with Lynx and Boa its really solid and about on a par with Rock but more vulnerable to non-basic land hosers.
Re-Animator is a dead deck, its just awful. The good versions are the UB Intuition/Infestation decks - those are very good but very complicated to play. IMHO though the UB deck IS the best deck in extended right now - the Squee/Horror/Horror/Infestation engine is brutal.
Sligh is a good choice if you want to finish 4-2, but a bad choice if you actually want to win the PTQ.
WWeenie is actually ok.
Miracle-Gro is extremely powerful but overexposed now after Long played it, and personally I would avoid.
Turboland is just awful unless you are Zvi. Its also awful if you cant win Game One of your matches, because it`s such a slow deck to play that you struggle to complete three games. Same goes for the Walaamies deck, which is even slower and so is a bad idea.
Stasis is a joke.
Donate is overexposed and far from invulnerable. I`d not want to play it.