I've never used any laminated shafts but here is a smapling of woods I have used.
Poplar is a little heavier and a little tougher than Cedar and is easy to straighten. I like this wood for making shafts for everything...target, flu-flu's, and hunting.
Lodge Pole Pine, AKA Chundoo, makes some good shafts. It's easy to straighten, takes stain well, and is a little heavier than Poplar.
I'll list Birch next. It is a little heavier than LPP and is a little tougher. I've made nutters from Birch and bounced them off of all kinds of things.
Hickory & Ash are tough and are about the same in weight being heavier that LPP and Birch. They are about the same for straightening and grain runout is not as critical with Hickory. It will take a really good shock before breaking.
If you are looking for heavy, tough shafts get some Ipe (pronounced ee-pay). Ipe is a Brazilian Walnut and is a very dense, hard wood. Ipe's specific gravity is heavieer than water, it won't float. For an idea of weight.......5/16" diameter - 66-70# spine - 36" long shaft will weigh around 800 - 850 grains.
There are others exotics around such as Bulletwood and Purpleheart that are lighter than Ipe but heavier than Hickory.
Dennis