The hoe is better
I love my garden tiller and when I was younger I loved it even more. But as I grow older I have to admit that when it comes to controlling weeds, the good old hoe is better than any cultivator. Tillers are good for loosening up the dirt in spring, or to smooth the soil after turning it over with a spade. And of course if you have really large plots to cultivate, the tiller is the better choice. For everything else I vote for the hoe.