I loved my Alaska trip. But I would never go in Feb or March. The weather is too severe those months. We went in August and it was 70* inland, cold on the water.
We took a cruise ship from Vancouver then a land tour across to Fairbanks. I have friends that rented a car and drove themselves.
I never wanted to go to Alaska, I prefer warmer places, but my cousin in Australia wanted to, so we all went, 12 of us, and it was a great vacation, I enjoyed it.