The 3E Fighter still plays pretty simply, unless you take some rather obscure feats.
True, but making the builds straightforward isn't a bad deisgn goal, either.
I do think that there is a niche for a less complex version of 4E D&D. I would find character creation daunting these days without a DDI account; mcuh as I like the tool, I'd rather that not be the case.
It is also a nice idea to have structured classes so that complicated interactions don't show up as frequently. This is a real blessing for the newer DM who has a lot to manage.