In a perfect world, Weirdwolf's idea would be the best. But in our little football world, it really does depend on your personal tastes. Some love the look of hand painted, some prefer the decals. I like both as a collector. But as a craftsman, I like to paint whatever I can, and decal what I know I can't.
At my age, (41) I can't see as well as I used to so it's more challenging to paint. But then again, decalling isn't easy by any means!
Here's some of my paint work on my Miggle proline figures. While someone might love them, I think they pale in comparison to Mike's awesome work above. Depends on what YOU personally like.