- whole foods rather than processed foods
- varied vs bland breeds
- local vs mass agriculture
- organic vs chemical agriculture
- PETA vs torture meat
Now, in case you didn't know, torture meat tastes better and PETA kills animals. So that's one argument against treating animals "humanely".
The other thing is that 'varied + local food' is called Slow Food. It's the biggest food movement there is, possibly bigger than organic. And unlike organic, it actually makes a taste difference. And the reason is very simple. If you buy locally then the fruits and vegetables are picked when they are riper. That makes them taste better.
Now, it happens that organic farms tend to be small. So if you buy organic food then you're very likely to get slow food. And that will make a taste difference. The important point is that this is a historical accident which is being reversed as giant mega-corporations buy into the organic label. So no, organic foods do not taste better. If you buy organic from a giant mega-corporation, and there are a few around now, the taste difference should go away.
Another example is organic milk which may have a longer expiration date because it is filtered to higher standards. Again, just an accident that has nothing to do with its being organic.
Being unable to make important abstract distinctions (eg, local vs organic) is a hallmark of the magical thinker.