The best thing you could do is go to a guitar store and test drive a bunch of different guitars, since each brand tends to have its own feel. Epiphones, for instance, have really wide, chunky necks that make them challenging for small-handed guitarists to play. And some have much lower action than others, which makes it much easier to move smoothly between chords and notes.
I'm female and have really small hands so I looked long and hard before concluding that Ibanez guitars were ideal for me. They're known for having really thin necks and low action. They're also built like rocks, sound great and are often nicer than guitars costing twice as much.
There's an Ibanez model called Sage that's one of the nicest guitars I've ever played, but which costs only $180 at Musician's Friend and Guitar Center. It has a solid spruce top, which is the most important feature in an acoustic guitar. Most lower-end guitars have laminated wood tops so they don't sound as warm and full as ones with solid tops. And spruce is one of those woods whose sound improves with age. I bought a second-hand Ibanez guitar more than 20 years ago and figured I'd upgrade to a "nicer" guitar after I learned to play. I eventually did get more guitars, but the old Ibanez is still my primary guitar for both recording and playing live because it sounds nicer than any other I've tried and still plays like it was custom made for me. And my guitar snob brother, who owns a recording studio and swears only Gibsons and Martins are worth owning, often borrows my Ibanez for recording projects because the sound is so pristine.
I'll post a link to the Sage at Musician's Friend. If you read the reviews, you'll find I'm not exaggerating about how nice it is. Jasmine by Takamine guitars are also really comfortable for most small-handed players, so they're worth considering, as well. Takamines are great, but tend to cost a bit more. If you handle a bunch of different brands before deciding, chances are you'll have no trouble finding an excellent guitar that won't break the bank, but which will serve you well for decades.
http://guitars.musiciansfriend.com/product/Ibanez-SGT120NT-SAGE-SERIES-Acoustic-Guitar-?sku=512326
http://guitars.musiciansfriend.com/product?sku=620424 (The acoustic-electric version.)