I found California orange to have more orange "flavor" and its texture is better for eating, definitely my favor.
However, in regarding to juice, I think Tropicana is as good as commercial can get and that is the only brand I get (when on sale, will go to another store to buy, etc).
Maybe a bit off topic. I found that Sunkist in foreign country are far more expensive ($1.25 US per lb 10 years ago, even more right now) and taste far better. Maybe they get all the good ones and ship them out for big bucks first, so we only got left with 2nd grades.
I still remember when my friend came here to visit me they will keep eating the cheap oranges until they explode. So cheap here, it is like all you can eat.