Just my opinion.... but.....
I just love BCV for three reasons: location, transportation, and stuff to do at night.
Location: You just can't beat walking across a bridge and being at World Showcase!
Transportation: I LOVE being able to use the boat, monorail, or walking to get to HS, Epcot, and MK. It's possible to only set foot on a dreaded bus if you want to go to Downtown Disney or Animal Kingdom. I've stayed at AKL several times which is wonderful... but bus is the ONLY mode of transportation there and I tell ya... by the end of the trip I really really really hated the sight of a bus!
Stuff to do at night: It's really nice to be able to walk two other resorts so close by (Boardwalk and Yacht Club). It gives you a LOT more options for restaurants, lounges, etc. And sometimes it's fun just to wander their lobbies and check them out.
One final note: don't forget BCV has THE best pool in all of WDW! Stormalong Bay is amazing.
Whatever you choose I'm sure you will have a fantastic trip! Enjoy!