I like the rainbow chard best just because of the coloring. They all taste the same. The red chard can make my spinach/chard soup slightly pink, but otherwise it's still delicious.
Chard is so easy to grow, and thrives. The only problem sometimes is bug eaten leaves. The plants produce a lot of...
Spinach bolts too fast here. I have never got a decent crop either. We grow Swiss chard. It does really well I think it's very similar in taste to spinach. It grows all season long and we harvest and eat a lot here.