From what I personally have seen, color morphs don't seem to positively or negatively affect a clown's hardiness.
I have a pair of non-brand-name Grade A Picasso from a very lousy pet store (Deathco) and they are EXTREMELY colorful and healthy and eat anything I feed and are super friendly.
They even gently eat food right from my fingers if I pinch flakes (though I rarely put my hands in the tank ofcourse).
Can't get the buggers to host anything though... Lol. I bought a large frogspawn since my old clowns in my old 29g hosted a frogspawn and loved it, but these guys don't care. Lol go figure.
I'd get an anemone, buuut... I hate anemones. Lol. They freak me out on the fact that they could randomly go for a walk and kill my prized corals.