Question re: Character Dining at US Hotels

[huntersmom]

Hi, We will not be staying at one of the onsite hotels, but would love to eat there while visiting the parks. Which hotel is closest to US and IOA ( I know they are all pretty close!) and which of the hotels have character meals, which characters show up, any info on food types and prices etc. Also, do you need to make reservations in advance ( we will be there kinda slow time, FEb. 08) and if so how far in advance? Any and all help greatly appreciated!