I suspect the best construction quality would have to go to the Akai CR80DSS which uses a beefy AC motor similar to the ones they used in their reel machines. It has a weakness though, the chips they used were prone to going noisy. Fortunately these chips are still availlable, if not a bit hard to find. Good sounding deck. It will also record and if you have good tape, it will yield a playback from that recording that rivals that of a reel to reel. However, these decks were not equipped with a Dolby-B noise reduction system, which was a popular option on many decks. They mostly didn't need it, but a few Q8 tapes were recorded in Dolby-B. It's a shame they didn't make it with their glass ferrite heads. But mine still has a good head in it without too much wear. I reckon I ought to tune it up and play it more, but the tapes have gotten so hard to keep in playable condition. We all know about the mad dash to the eight track machine with the music speeding up as the tape winds around the capstan. I might take that on as a project after I get my CD-4 demodulators up to par.
The Quadfather