There is a poll on this but unfortunately some of the best drives are becoming obsolete. I just ordered a Pioneer 115 from one of the last places that have one and as it is, it will have a silver face plate vs. black which I would have preferred... that was through eBay and he had two left when I ordered mine, but then I haven't gotten a shipping notice so I don't know what is going on with that.
The other drive is the Sony NEC Optiarc 7200 (not 7220) series..a few of those remain here and there and in fact there is a message string in here about them.
The other top rated drive that is still current is the Samsung 203. The current 4th rated drive is the 116 which replaced the 115.