Sitka is beautiful, and we saw a ton of bald eagles. We also went to the bear sanctuary there (Fortress of the Bear), but my phone died so I don't have any pictures, but I'd highly recommend it.
The views around Hubbard glacier were spectacular:
Juneau is the capital of Alaska but it is a pretty small town. We did a whale watching excursion with Dophin Boat Jet Tours (they are awesome, and one of the only ones not associated with a cruise line) and saw five or six humpback whales, we even got to see one of them jump fully out of the water! We also saw some sea lions and eagles.
Ketchikan seemed like it was mostly centered around being a shopping port and we didn't opt for any excursions here but we did find a pretty trail close to the port
I'd love to go back and do a cruise tour to Denali from Anchorage. Maybe someday.
"To the lover of wilderness, Alaska is one of the most wonderful countries in the world" -John Muir