I was wondering if anybody could give me some input on these two cultivars. From what I've read so far, they are pretty similar. I have a Midknight but want to add another Valencia and the local grower has Cutter and Olinda.

Thanks

from Citrus Varieties of The World
There are several clones of Valencia....
Olinda, indistinguishable from Frost, except that fruit has tendency to produce more chimeras.
Frost, exceptional vigor and is highly productive, but fruit quality is very similar to old budline Valencia.
Cutter, trees are more vigorous, larger and more thorny than the standard Valencia as well as being somewhat"slower to bearing/ more productive"
" fruit is indistinguishable from other Valencias, distinct advantage of producing fewer chimeras". I did edit to save typing.