Garnfellow said:
There is no publisher that can even come close to touching WotC for production values. None. Period. Seriously, is this a loaded question?
In objective measures (quality paper, quality binding, color content, well-illustrated), Spycraft 2.0, M&MM, M&MM 2e, Redhurst, and quite a few other D20 System products, as well as a whole slew of non-D20 System books, easily make the cut.
Once you add in subjective measures, the numbers can get a whole heck of a lot higher. I find Arcana Unearthed, Arcana Evolved, Iron Heroes, Fantasy Bestiary, Spycraft 1, Shadowforce Archer, MMS:WE, MS:E&C, Primeval Groves (and the other books in that line), and quite a few others, all to be both better-illusttrated than most WotC books and, more importantly, much easier to read, in terms of layout and editing.
And that's just sticking to D20 System stuff. If i were to start considering other games, the list would get really long, and really put WotC, with their money and market muscle, to shame.