Lol.
Do not use Wings, or Sketchup. or Milkshape. They are not powerful enough to make decent add-ons. It'd probably look like stuff if you exported it. Blender seems complicated, but it gets quite easy once you figure it out
lololol
I bet you haven't used milkshape or wings a day in your life.
Considering your level of modeling. You can't take advantage of the more advanced features of blender anyways.
Milkshape and Wings3D are just fine for blockland add-on creations.
How ever, sketchup is horrible.
I used to use it, and it's exporter is stuffty and creates a lot of unnecessary polys.