Ok here are the stats for you:
[name]Hazel[/name]: #175 in 2012, #209 in 2011, #264 in 2010
[name]Penelope[/name]: #125 in 2012, #169 in 2011, #200 in 2010
[name]Clementine[/name]: outside the Top 1000
[name]Willa[/name]: #723 in 2012, #983 in 2011, #952 in 2010 (first year to make Top 1000)
So you can see that all of these names are gaining: [name]Hazel[/name] fastest, then [name]Penelope[/name], then [name]Willa[/name]; I don’t know how quickly [name]Clementine[/name] is gaining since I didn’t go digging in that data. Still, [name]Ottilie[/name] is right - [name]Vanessa[/name] is ranked higher than [name]Penelope[/name], along with (ranking higher as we go) [name]Natalia[/name], [name]Destiny[/name], [name]Nicole[/name], [name]Paisley[/name], [name]Madeline[/name], [name]Piper[/name], [name]Violet[/name], [name]Aria[/name], [name]Kimberly[/name], [name]Kennedy[/name], [name]Naomi[/name], [name]Caroline[/name], [name]Bailey[/name], [name]Melanie[/name], [name]Faith[/name], [name]Serenity[/name], [name]Riley[/name], [name]Nevaeh[/name] & [name]Alexis[/name]. I think it’s really your call. If popularity is going to deter you then there you have the real-life numbers and the perspective of some other names to make an informed decision.
From your list, I like:
[name]Hazel[/name] [name]Isadora[/name]
[name]Penelope[/name] [name]Rosalind[/name]
[name]Penelope[/name] [name]June[/name]
[name]Willa[/name] [name]Genevieve[/name]
[name]Clementine[/name] [name]Juliet[/name] just feels clunky to me. Maybe [name]Clementine[/name] [name]Willa[/name], [name]Clementine[/name] [name]June[/name]? The only name I think [name]Juliet[/name] really works with is [name]Willa[/name], for [name]Willa[/name] [name]Juliet[/name], though I like [name]Willa[/name] [name]Genevieve[/name] much better. [name]Hazel[/name] [name]Genevieve[/name] would be very pretty, too.