I am 16 years old, and I LOVE Hannah Montana/Miley Cyrus! I think that she is a good role model, and is just very real!! What you see, is what you get and what you get is a fun, energetic, TEENAGE girl (just like the rest of us! hehe)
Personally, I don't think that the "revealing pictures" of her make her a bad role model like many say, because, as sad as it is, that is the norm for us teens (well, I personally won't do it but heck, I know many who do!) It just shows that she IS a teenager, she DOES get into trouble and make mistakes... and thats ok because "nobody's perfect!" and "underneath it all [shes] just like you"
Miley has a good and strong head on her shoulders, and will go far. I have no doubt that she will pull a "Britney Spears" anytime in her life, and she knows right from wrong, and has an amazing family to back her up and lead her in the right direction!! I think that this aspect is the number 1 reason for me loving Miley/Hannah so much - she might not be the greatest actor, the best dancer or the most amazing singer, but she is REAL, and true to herself and in her heart =D
-TizianaL