Gief has no bad matchups. Guile is feeling bad right now and Dhalsim and Claw are very hard to win with. Ino said himself that with his Abel he doesn't lose more than a couple of rounds against any Dhalsim he fights.
Ryu, Guile and Sagat can space Gief, but they have to play like ******* because as soon as Gief gets close and you make an error in your blocking string you're getting SPD'ed, and since now Gief has options to follow his SPDs you probably be EX-green-handed and then SPD'ed again.
EDIT :
There's gonna be a full-length Anime Movie for SFIV. Studio 4C are the ones doing the animation. Let's just hope it's better than Alpha Generations.
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Watch this. Too good.
How is that "not" a bad match up?
Ino is only ONE person , and quite frankly he does not hold all the almighty cards to how SF:IV is.
Once Gief gets in on anyone, he becomes a complete monster, this has been the way Zangief has been since, well, SFII. You ever seen a CE Gief, or HF Gief when he gets in on you? C.mk on block into SPD is an absolute nightmare I tell you. Have you seen Kunai's ST Gief when he got in on A. Valle's O. Sagat? Gief had waay more options back in his early CE/HF days after a SPD then he does now in SF:IV, this isn't anything "new". It's just that they didn't nerf his SPD to snot, and it feels more SFII like then in other previous incarnations.
I find it hilarious that you use the term "*******" for Ryu, Sagat, and Guile's gameplay, considering that spacing with a projectile is an important part of their gameplan anyhow, so as to why it shouldn't be used to confront Gief would not make any sense. Anyone who tries to rush Gief down with Ryu, Guile or Sagat are complete idiots I'm sorry to say, because spacing is the key to beating a Gief.
Maybe, I stand wrong on Ryu having an "advantage", the match up feels alot more like whomever plays a better game wins.
However to say that Gief does not have any bad match ups against Sagat, Guile and Blanka at this point is absolutely ridiculous. Sagat with Low Tigers causes huge problems for Gief, and Sagat's s.fk stuffs out Gief's jump in's, considering that I've seen people trying to trade shots with Sagat's s.fk, it's usually 4-5 times, before they finally trade in hits. "Once" Gief gets in close to Sagat then it becomes only an even match up, as Sagat can control this area as well as Gief can.
That isn't even all yet for why Gief has a difficult time rushing down on Sagat, at max screen, if you lariat through Sagat's Low Tiger shot, he actually recovers faster then you and can then do a High Tiger shot to hit Zangief before he even recovers. You do Lariat from Halfscreen away (One of Gief's best tactics might I add) and Sagat can do >+short into Tiger Knee and land this on you every single time, knocking you to the floor, which puts Sagat at the advantage and initiative.
This shuts down one of Gief's most important tactics to getting in on opponents, not to mention meter building as well. Banishing Fist is not good up against Sagat, only Ex-Banishing Fist is good, and that is only if Sagat actually gets hit with it, otherwise, Sagat can still recover faster then Gief and punish him with almost whatever he feels like.
However, if Zangief gets a knockdown, this isn't ocv against Sagat either, because his Tiger Uppercut can trade shots with Gief's cross ups and his meaty's as well. Ex-Tiger Uppercut completely blows out ALL of Gief's cross ups and meaty's, if the Sagat has meter to spare, so even on knock down, it's not for free.
When Sagat has meter, it's insane to try and rush in on Sagat, because he can easily land this on you, and it's over. If Sagat has both Ultra and two bars of EX, it's even more suicide to walk in on a Sagat with Gief.
Simply put, up against Sagat, Zangief cannot utilize some of his most potent forms of getting on him, this results in Zangief having to play a much more sound game then Sagat does, this forces the Gief player to having to play patient and forcing him to turtle more, which is not a strong point of Gief's gameplay. So this is definitely a difficult match up on any regards.
Guile does great up against Zangief, this match up feels a heck of alot like HF Guile vs HF Gief, but more like ST Guile vs ST Gief. Because of the sheer speed recovery of Sonic Boom, Ex-Banishing Fist is not that good against Guile unlike other fireball characters, unless you are so close, you land the hit on Guile, otherwise, Guile recovers so fast, he's able to block and combo you afterward. Sonic Boom for spacing forces Gief to having to do something, and with Guile either moving or crouching this will either result in Guile punishing you with his c.forward, other pokes, SB, Flash Kick or what not.
C.FP and Flashkick will beat out Gief's jump in's and at the worst, will trade off, however this is again to Guile's advantage simply due to the fact that he gains his positioning with SB again.
Even once you are in, this match up is imo, more difficult then Sagat's close up, because Guile has the pokes to prevent Gief from truly getting in. SB, c.forward, all the likes of which are difficult for Gief to counter. This match up is very ST like, although it isn't as bad, this match up is quite tough for Gief.
I completely forgot to mention Blanka previously, however he is one of Gief's most difficult match ups, due to the fact that Blanka's standing pokes beat out most of Gief's pokes and meaty's which puts Zangief at a disadvantage. Zangief has a difficult time up against Blanka Roll as well, unless you tries to bait it. Electricity is a problem for Gief because he can't cross up well up against Blanka, not to mention Ex-Blanka Roll blows out Gief's cross ups. So even at corners, Blanka can easily get out of there and avoid Gief's corner traps.
Gief is great, but he's definitely not #1, nor does he not have any bad match ups, as I just posted above. Sagat is the only one so far that I see whom either fights evenly with characters, or else has a clear distinct advantage over, there has been no real strong counter to his gameplay yet, so he's really #1, not Gief.