Reams could be written, and probably have...
Poulan might not make my list, just because they were never well-supported in my region. The only places that sold them got them through the hardware chains, and weren't particularly interested in service or parts. There were a few glimmers of hope during the early Poulan Pro days, when a few Pioneer/Partner dealers had access to the good ones, but we all know that didn't last long.
There's some difference of opinion regarding what McC and Honie saws were the last "good-un's...I won't support the idea that the 605/610/timberslugs were "good saws", and the similar year Homie pro saws were hard to get hold of and made overseas.
I'll nominate the SP700 and Eagle80 McC and 360 and SXL Homie as the last real saws. The Macs and SXL were available until about 1994 or 1995, mostly because there were still some laying in warehouses. Maybe somebody like Bailey's or another big dealer still had some for a while after that. Even as I nominate them, let me say they were outdated design saws (the SXL was outdated in 1975, let alone 1995), and they probably sold an awfrul lot more to nostalgic sawyers than working pros.
Afterthought: Homelite supposedly had a saw based on the same motor as the last abrasive saw...(8800?). I've never seen one in the flesh. Must not have sold many...
I agree about the Macs. .