Val Carrie is vigorous and has an upright growth habit. It is similar to PPK in that regard. I personally love the flavor, but I know a few who don't. Most people love PPK. Orange Essence isn't a fast grower.
White Pirie is really good. My tree, in the ground for to years, flowered and fruited for the first time this year. Slow to moderate growth, and the flavor is really good..similar to Bombay and Sunrise and from the looks of it, much more productive.