Everett. Everald seems fairly unique to me (I haven't noticed it before), and my personal impression is that it doesn't really have anything going for it that makes it better than
Everett, except that it isn't popular. I think the -ald ending (like
Donald Ronald Archibald Reginald Harald) feels stodgy, and Everald sounds like
Emerald and
Everild (both feminine to me). But, it's not a bad name for any reason I can think of. Just doesn't appeal to me as much as
Everett.
- mirfak