which airport is more convenient for a person who will use public transportation and taxi only during the trip, Newark Liberty Intl airport, or JFK airport?
紐約的三個機場都有便捷的公共交通及出租車；拉瓜迪機場離曼哈頓最近（離新唐人街法拉盛更近），JFK次近，Newark最遠。不過從那個機場抵達或出發主要看你選擇的航空公司是什麽。
Which airport is safer and has few delays?
不清楚。
I am thinking to fly to Washington Dc, take bus to New York, then fly back from New York to the bay area.
In Washington DC, which area to book hotel room is more convenient for traveling in the district, to see white house, and the museums?
在DC，以國會為中心點，從北到南畫一條線，線以東是黑人區，不要去。盡量選擇DC靠西邊，靠西北，及西南邊的旅館，從網上看看DC的地鐵路線圖，選地鐵邊的旅館。495號環型公路以外的VA或MD州的旅館也行，隻要在地鐵站邊上進入DC都很方便。
In New York, which area to book hotel room is convenient, safe and economical to travel to Time square, wall street, museums, book Broadway ticket.
曼哈頓的旅館都不便宜，稍好的旅館在$300以上，中檔的300-150，低檔的150-100（都是稅前價，紐約稅很高）。你可以考慮住法拉盛的華人家庭旅館，一般都是$60。自己去Google下吧。
also, to see the statue of Liberty, what kind of trip or transportation to use? Is it allowed to go up the statue? Or, can only take cruise?
從曼哈頓去自由女神是到曼哈頓最南麵的炮台公園坐渡輪。最好是先到網上把輪渡票買了，坐渡輪前直接到售票口拿票，否則光買票就起碼耗你一小時。如果非要上自由女神額頭裏，你一大早就得去炮台公園單獨買票，這票每天限量發售，每張票上注明上頭的時間，你根據票上的時間去自由女神下排隊。細節挺多的，你自己好好看看自由女神公園的網頁說明。
