I also played my original copy of Exile recently and it is quite pleasing. Hlmiii says the only copy that is "OK" is the UK version. To his ears in his system perhaps, but the US version is fine with my gear. Better than Sticky Fingers, Beggars Banquet, and Let it Bleed but not as good as Aftermath all of which I purchased on release.
Aftermath is done really well and IMO may be the Stones' best sounding original release on vinyl. I've not heard any of the vinyl reissues and/or digital releases.