Badside has it. To me every single guitar I've had with basswood has a spongier bottom and less bright tone, pretty dull IOW. it's fat sounding but lacks the chime and strat stuff.
I think it's cool tho' for helping get a thicker tone esp. if you have a stiff neck which is bright sounding. With ash, that neck might sound thin.
buy whichever particular guitar does it for you and forget about the micro-analyzing.