I really don't like the name
Destiny. I don't think it sounds pretty at all. I don't particularly like the concept of destiny. And, yeah, I think it's trashy.
Clarity, however, is fun. Not really my style, but I've never heard of it as a name before and it's interesting.
Serenity I like. But I also like
Serena and
Seren so
Serenity isn't a huge stretch for me. So,
Serenity is my favorite of the three.