Try checking out various cabin/suite numbers at this web page for information, including square footage of cabins and balconies.
On the Jewel, AA and AC suites are forward, AD and AF suites are aft. AB suites are on top deck facing port and starboard. And I won't even mention the villas looking down on all others from high.
http://www.cruisedeckplans.com/DP/Main/shipsncl.htm
For example, front AC suite on Jewel:
Cabin 9000
Crib (1)
Duvet (1)
Refrigerator (1)
Hair Dryer (1)
Telephone (1)
Safety Deposit Box (1)
Television (1)
Sitting Area (1)
Sprinklers (1)
Private Balcony (1)
Bathtub (1)
Shower (1)
Queen Size Bed (1)
CD Library (1)
Digital Video Disc Library (1)
Digital Video Disc Player (1)
Stereo/CD Player (1)
Forward Section (1)
Oceanview Stateroom (1)
Butler Service (1)
Concierge (1)
Dining room area (1)
Livingroom area (1)
Floor to ceiling sliding glass doors (1)
Starboard Side (1)
Pier forward (1)
Bar Counter (1)
Balcony Square Footage (284)
Cabin Square Footage (294)
Tea and Coffee Maker (1)
Internet access (1)
Another example, aft AE suite:
Cabin 9172
Crib (2)
Duvet (1)
Refrigerator (1)
Hair Dryer (1)
Telephone (1)
Safety Deposit Box (1)
Television (1)
Sitting Area (1)
Disabled Stateroom (1)
Sprinklers (1)
Starboard Side (1)
Oceanview Stateroom (1)
Aft Section (1)
Tea and Coffee Maker (1)
Convertible Lower Beds (2)
Shower (1)
Private Balcony (1)
Floor to ceiling sliding glass doors (1)
Pier aft (1)
Balcony Square Footage (58)
Cabin Square Footage (276)
Internet access (1)