Hi Kasperow,

You're right, the names do refer to the shapes of the guitars. But the amount of wood does make a difference in the sound. It's part of the reason each has it's own sound. But yes, pickups and strings do make a difference as well as where the strings make contact with the guitar: bridge and nut.

Also some Les Pauls have cavities in the wood to make them lighter (not completely solid) so this as an effect as well.

But, despite all this, I still get the guitar I think sounds good, regardless of it's name. :)