It will all depend on what you think you would like.
There are Woods view, may or may not have Illumination views, generally a quieter location, not much else to look at other than trees.
There's also what was or is called EPCOT view, generally closer to the road, which some fine undesirable because of noise.
There is what is called Courtyard view which overlooks the courtyard between the BC & BCV, not much to see other than people coming and going from BCV.
In general closer to the Marketplace, BC lobby & bus stop
Lastly there is the pool view, which overlooks the quiet pool, spa, & canal. Personally my favorite, as it allows for the greatest people watching if you're into that. Many complain it is noisy, and if you keep your door open it probably could be. The lights for the pool are on all night and you may have people in the pool and spa until 2 or 3am.
Next things to consider would be, do you want to be close to elevators, closer to the BC resort, closer to the parking lot. Keep in mind that being closer to one end of the resort is only a couple of min from the other end, it is a small resort. Also important would you want to be on the ground floor or upper floors, I personally prefer upper floors.
Remember requests are only that, there are no guarantees you will get what you want, but I believe the more specific you are the better the chances, I honestly think they do try to meet your request.
If you're not happy with where they assigned you, don't hesitate to ask what else is available it might be better to you than what they assigned you. But by all means don't be demanding or argumentative, that will work against you.
I hope you enjoy your stay at BCV