Hardly. Depends on if you're talking about the nipples or areola.
Nips:
Bai Ling
Posh Spice/Victoria Beckham
Between certain surgeries recent and past..
Pamela Anderson.
Sonia Braga
Milla aint bad, yer right.
Bjork
Naomi Campbell
Sandra Oh
Nice Areola:
Sophie Marceau
Thandie Newton
Charisma Carpenter
Gillian Anderson
Kate Winslet (Hey, I've always liked 'em.)
Mena Suvari
Jennifer Tilly
Special Mention:
Christina Aguilera (Pierced in public)
Chloe Sevigny (Nips arent anything TRULY special, but in a certain movie she's actually shown blowing a guy. Nothing fake.)
Monica Bellucci (Who doesnt love 'er?)
Winona Ryder (Big friggin' tits on a small frame.)