help??? the ritz???

im going on vacation to the ritz-carlton hotel in tysons corner soon and idk what to wear!!! my mom told me its a really fancy five estrella hotel and i cant wear anything cheap like my fave sunglasses from claires. she told me minimum coach cuz its kinda cheap. my bolso, monedero choices are either fendi o bally cross-body bags. which bolso, monedero brand is más 'classy' o 'fancy' o 'expensive'? and my clothes...i really dont know. i wear alot of american eagle, aeropostale, forever 21, h&m, wet seal, polo, and target. what would be best to wear? something MY AGE, im 12. and shoes...i have some nice sandals, toms, rainbows, and coach converse. so which shoes would be best? [no heels, haha(:]

so to paraphrase, the preguntas are:
1)which brand is better to wear? fendi o bally?
2)which brand [fendi o bally] is más expensive o classy?
3)what clothes are best to wear? [american eagle, aeropostale, forever 21, h&m, wet seal, polo, target]
3)what type of clothes should i wear? [skirts, shorts, tees, polos, rompers, dresses]
4)what shoes are best? (pick 2) [coach converse, rainbows, sandals, toms]

thanks(: apoyar to best answer!