What Is the Best (Distribution|SCSI Card|Editor|CD-ROM Drive|....)

The "best" of anything depends on your particular needs. Discussions
like these frequently occur on Usenet. Most often they're flame bait.
Answering is generally a waste of time. Free software licensing is
unrestrictive enough, that, with a little experience, you can perform
your own testing on your own hosts.

A better way to phrase a specific inquiry might be: "Where can I
find...."