The last time I found icon view useful was in Mac OS 9. There were three main characteristics that made it useful that no current systems have AFAIK:
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The icon grid was tight (32 pixels) and you could either snap items to that grid or place them freely.
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Window sizes and places were directly associated with folders. (There was no "browser-style" single-window mode.)
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File names used dynamic spacing. Longer names would occupy multiple grid spaces as needed.
These factors meant that every folder had a consistent and potentially unique size, placment, and layout.
OS X took the Finder and either ruined or neglected everything good about it. Windows explorer has always been garbage. Never found a Linux file manager with a compelling icon view either (though to be fair, I've never looked all that hard). The lack of system-level metadata for layout kind of mandates an abstraction between a directory and its display.