3 for sure, although I do like 1 and 2. I like adding accents to make a theme. Butterfly accents with butterfly bedding is too much butterfly. I feel like that about any theme... Theme + theme = too much theme.
One for sure would be my leader... While 2 and 3 are nice, 1 is the one that will "grow" with her. It may not seem like much now, but there'll come a day when the tweens hit and you'll want something that's a mid-way point and that's something
I have been obsessing over 3 for my own DD. I just can't commit to it because I wanted more color. It is so pretty though. I like 3, 1 and 2 as a very distant last.
Re: Need opinions...
fixed link
oops, there's the first option...
I would look for more whimsical butterfly theme.
To me, I wouldn't spend those prices for a comforter for my girls that look too delicate. I can see them destroying them, IMO.
Option 3 - same as other posters. It's easier to change over time.
However, I do love a few of those Target ones someone posted, the 2nd and 3rd ones best