I'm not exactly one to give this advice since I bought at both resorts, but give us some more info...
When do you like to travel?
What parks are your favorite?
Who is typically in your traveling party?
We love BWV because the location is amazing. You can walk to two parks, there are so many restaurant options between the Epcot resorts area and the World Showcase. And the whole Epcot resorts area is just so tranquil and inviting.
We love BLT because there is nothing better than walking away from the hordes of people heading for the monorails and buses after a long day at MK. There are so many fun places to eat at the monorail resorts. And I love how many times you get to see the castle from your resort (even if you're not staying in a TPV villa).