I love
Rosamund, it's been in my top 5 for as long as I can remember.
I prefer the ROZZ-a-mund pronunciation, short 'o', like in
Oz (I can't have it as RAHZ-a-mund because that just sounds/looks completely wrong to me, it looks like it should be spelt Razzamund not
Rosamund). I used to like the ROZE-a-mund pronunciation but not as much now.
I also like
Rosalind, and I pronounce that ROZZ-a-lind (not ROZE-a-lind).