If you want the largest balconies, you want some of the aft-facing suites. For me, nothing is lost by being at the opposite end of the ship and a few decks down. Others may feel differently.
Having 2 full bathrooms with a large balcony is better for us than the 2BR Family suite that's located within the Haven enclave.
Personally, I would book directly instead of bidding. I'm particular when it comes to balcony size and stateroom configuration of the aft-facing suites.