I'd say turnips are a lot easier to sell for a good price in ACWW compared to ACGCN. The reason for this is WiFi. If we have bad prices, we can just visit another town.
In AC GCN, I managed to hit the big Bells easily, since the prices were high most of the time at Tom Nook's. But in AC:WW, the prices are lower than they were on average in AC GCN, so even if you can travel to other towns and sell turnips there, the prices are lower than in AC GCN.
In AC GCN, I managed to hit the big Bells easily, since the prices were high most of the time at Tom Nook's. But in AC:WW, the prices are lower than they were on average in AC GCN, so even if you can travel to other towns and sell turnips there, the prices are lower than in AC GCN.