If I need something that has the sort of low current requirements appropriate for an unmanned spacecraft, or can handle super-low impedance loads, or run off super-low supply voltages, there will be an op-amp for that. But there is tremendous overlap between them, and the many varieties tend to exist to serve very specific niches that are required for very specific contexts.
Yes, there are a great many varieties, and those varieties exist because the chips are different in various ways.
We tend to make too much of the difference between op-amps. The Klon does not use diodes in the feedback path, nor does it rely on any weaknesses in the op-amps for its sound. Lesser amounts of hoopla emanate from the Rat and the MXR Distortion+, both of which were designed around the inherent weaknesses of the chips they employed. Much of the hoopla about op-amps in overdrives emanates from the Tube Screamer, and its derivatives, where clipping diodes in the feedback path interact with the particulars of the op-amp. I've had the pleasure of having two entirely ungooped Centaurs provided to me by Bill Finnegan, along with a schematic, and can assure you that there is nothing in its design that would command fussy use of op-amps. There is enough overlap between what an 833 "likes" and what a TL072 likes, that there should not be a difference. But that's a matter of what's around the chip, than the chip itself. If it is pushed to the perimeter of its characteristics (e.g., open loop or very high frequency input), maybe. If it is used in contexts that are "inhospitable" to its characteristics, maybe.
There is no more, or less, "color" to an LM833 (or NE5532) than there is to a TL072 or any of a host of other dual op-amps.
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