To bring all that good described mods into comparsion between SH3 and DW:
If u play SH3 with any of the supermods u get a new game.
In DW the changes are minimal in comparsion to the things SH3 modding community can do. So dont expect a difference like stock SH3 and GWX for example.
At least i would recommened to play stock first and then try out the mods.
LWAMI might be a good choice as first mod
