I'm torn! I like aspects of all three of them. I'm a huge sucker for the -ett ending in names, but Scarlett's never really appealed to me. It seems too whiny, too flashy. I like Violet, Charlotte, Hannelotte, even Juliet (which I don't really like, either) lots more. But there's something sweet and feminine and understated about Scarlett Jane. I like Stella more than Scarlett, but I like the combo of Scarlett Jane more than Stella Jane. And Jane Linley--well, I am just enamored with the idea of an adorable little Janie, and Linley's a great GP of mine, and by far my favorite of the -inley names (Kinley, McKinley, Tinsley, Linley, Finley, etc.!). Jane Linley is a great balance of modern and classic, and Linley adds some adorable cuteness to the more austere Jane! I think Jane Linley gets my vote in the end, but if you're open to Letty/Lettie as a nn for Scarlett, I might just have to change my vote. :)
Normally, I'm not a huge fan of the one syllable names, but the classic feel and it being so rarely used really gets me. It's simplicity makes it more beautiful. It's also both mine nod DH's grandmothers mn.
Scarlett, I like. I do. At times it feels a bit harsh, but I do think Jane makes it a bit more "down to earth"
I love the meaning scarlett but the sound of jane is ever so much more pretty and it's shortness makes it smart sounding, too.