WOW what a tough question to answer.
I have been blessed and have fished in lots of special places. Each offers a different memory, and a real appreciation for the trip. The first to mind would be Ten Mile Creek in Frisco CO when I was a boy of 10. There were 9 beaver damns in a row and lead to great Trout fishing, although my year in the Aluetian Islands Alaska had some great Salmon fishing and the Navy cooks did a wonderful job, or the numerous Boy Scout Fishing campouts where we taught the kids to fish, clean, and cook the fish, or the trip to Canada with my youngest son where he caught his first Bass, or the trip with on a buddies boat and we forgot the crackers and used cinnomom graham crackers (delisious), or the trip with the wife on my boat when we shared an umbrella under the downpour, or it could be the charter boat fishing trips in Puget Sound or Lake Michigan, or maybe the yearly guys weekend in November with a Marine Corp buddy, or the backpacking/fishing trip in the Porcupine Mountains UP Michigan. My favorite place to fish? I guess my answer would have to be, every time I go fishing is my favorite for one reason or another. Each holds a special memory.