I've done quite a bit of research into these two pedals, and I concluded that the Eventide was too dark in effect, while the Strymon was better for clarity. And because these two pedals are usually used for extremely deep ambient reverbs, clarity is essential.
Incidentally, I've come to prefer the Source Audio reverb and delay. They're of a comparable quality but a bit more reasonably priced. Plus, the Nemesis delay is Daniel Fisher's favorite pedal, which carries some weight.