Overall I like a GOOD synthetic stock. Lighter, tougher, more stable. The problem is most factory synthetics, as well as most of the cheaper aftermarket synthetic stocks are not very good. Walnut is going to be just as light as most of the cheaper synthetics, although probably not as durable.
Laminate stocks are the best bang for the buck. Almost as stable as a good synthetic, and pretty durable as well as cheaper than a good synthetic, or walnut. Their downside is that they are by far the heaviest. Good for a range gun but over the weight limit for me on a hunting gun.
The Kimber factory stock is one of the best out there. On a factory stock the Tikka is pretty good. I hear good things about the new Savage accustock, but have not actually seen one. The Ruger is not great, but is above average for a factory stock. The Remington as well as most other factory tupperware stocks are junk.
Many poeple just buy the cheapest gun available and toss the stock in favor of a much better aftermarket stock.This is what I have done with most of my rifles.