Butch,
All things being equal, it seems to me that a limb core of less lams (thicker) of quality bamboo would be better - only due to the lack of glue.
I am looking at three bows now with similar limb thickness, two have three lams of bamboo and the third sports five (thinner)lams. There has to be a point of no return somewhere...I enjoy all three but one of three lam bows is easily a better shooter than the other two...probably due mostly to design and not at all due to the number of lams.
I'd agree with Dave in that most folks would be hard pressed to realize the difference.