Not if you consider games to be more than consumer products that need to work properly (i.e. play well). As an artistic expression and something that transports the player to another world, SFIV to me is without a doubt the weaker game compared to II or III. It might be the most complete game in terms of the amount of characters and gameplay systems (though there are many who'd disagree with that last bit as well in terms of how well those systems work), but as a unique work of art and an aesthetic experience, I'd be tempted to call it a directionless mess that went with 80% nostalgia for II, Alpha and III and 20% new ideas.
wager.
I can only hope V will become such a memorable experience again that would equal II and III (though the initial roster makes me a bit unsure if nostalgia is not again being a too powerful driving force behind the design...).
SF4 was a memorable experience, and will be for many people.
Its why 09'ers are a thing. Street fighter revival was a real thing, and to say it was a " directionless mass " is doing it sort of a discredit. Revitalized street fighter, sold well and brought bunches of folks back.