In my opinion the best AK-47's are pre-ban Eastern European and Chinese (Norinco) made in the arsenals/factories that make or made the military versions. My personal favorites for the best made stamped receiver AK-47's are from China (Norinco) because the receivers are 1.5 mm versus 1.0 mm. They are a bit heavier but feel much more robust. There's a long running debate whether the heavier receiver offers any real or practical durability advantage. The problem is these pre-ban guns are getting harder to find and more expensive. A post-ban MAK-90 is made with the same receiver and barrel. SC_Mike shows a post-ban MAK-90 converted* to look pre-ban. Another durability and quality debate is regarding a milled versus stamped receiver and to my knowledge it's never been settled. You'll pay more for a milled receiver gun and likely not get any advantages over a quality stamped receiver.
One member pointed out to be leery of AK-47's built from parts kits on U.S. receivers and I would echo that warning. Be very leery. Do your homework if you go this route.
A no-brainer, if you don't want to search for a pre-ban AK-47 would be to order from Arsenal out of Las Vegas. They make a quality AK-47, essentially a Bulgarian (i.e. Eastern European) gun, and offers a significant number of variations. They can be easily ordered to your local FFL through Davidson's or other suppliers.
Saiga's and Veprs are supposedly good firearms and having examined a number of them I would guess they are but they are not exactly a AK-47 built exactly like most other AK-47's so some parts may not be interchangeable. If you go this route do your homework.
*If you do a conversion from a post-ban to look like a pre-ban be sure to do your homework.
Since nobody has shown an AK-47 oddball here is my Norinco 86S. It is extremely compact at about 26" total length:
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