Welcome to FT and the Argentina forum CoilyKinks!
It sounds like you want to see most of Argentina on your first visit! What time frame do you have for this trip? To visit all the places listed I would suggest an absolute minimum of 3 weeks and even that would be a rushed trip in my opinion with no more than a few nights in each place. After one visit to Argentina I'm sure you'll want to come back for more so it may be an idea to focus your travels on fewer places if your time is limited.
The peak season for whale watching and wildlife spotting on Peninsula Valdez is roughly Sep-Nov. By mid-December all of the whales have left so depending on your dates you may be out of luck. Also note that December/January can be very hot and humid in Buenos Aires. If humidity is not to your liking I would suggest bringing your trip forward to November.