the biggest difference between woven & nonwoven interfacing is:
woven interfacing is more like a fabric- non-woven more like a paper product. the woven behaves like fabric- drapes, moves- the non-woven is a bit more paper like- stiffer, it is easier to get wrinkles from the fusable non-woven--
non-woven is also more readily available & less expensive- either one will work- but woven for your purpose may be a bit easier to work with- non-woven can tear easily too...