Brynn and
Quinn -- I don't like that they rhyme, and I prefer both names on boys. I also prefer the spelling
Bryn.
Capris and
Prisca -- Wow...look, it's one name turned inside out! Again, they're way too much of a set. Twins are two people...why not give them individual names? For a similar sound, I'd prefer
Caprice and
Priscilla (even though I don't like either of those names).
Victoria and
Nicole -- This is the best set out of four, just because they're not matched in any way...but I don't really like either name, nor the nicknames.
Bryon and
Robyn -- again, too matchy, and with kreatyve spellings. I like
Robin for a boy, though, and I don't mind it for a girl.