Aaron Allston (eg Dawn of the Emperors) is the only name that would really make me buy a book, although Sandy Peterson's Call of Cthulu is great. Greg Stafford would make me look twice. Jonathan Tweet also. And Bill Slavicsek I guess.
Skip Williams would deter me from buying, Monte Cook would make me cautious since his style is so different from mine. Gary Gygax's name prompted me to get Necropolis, but I found the turgid prose and execrable layout have rended it almost unplayable, so Gary wouldn't be an auto-buy anymore, although I mostly blame his editors - there's clearly a good scenario in there, it's just that during play I can't find it!
Skip Williams would deter me from buying, Monte Cook would make me cautious since his style is so different from mine. Gary Gygax's name prompted me to get Necropolis, but I found the turgid prose and execrable layout have rended it almost unplayable, so Gary wouldn't be an auto-buy anymore, although I mostly blame his editors - there's clearly a good scenario in there, it's just that during play I can't find it!