Roger Moore for me. Starting with Spy Who Loved me up till A View to a Kill, I saw all of these theatrically.
Sean Connery would be a close second (Dad's personal favorite). We had a lot of his movies when we first got the family VCR.
Pierce Brosnan did make a great Bond. Goldeneye was fantastic; Tomorrow Never Dies was not shabby either. I felt he got the shaft on the last two entries though. World is not Enough is bland and Die Another Day, sans Halle Berry/ Rosamund Pike, might be my least favorite along with Quantum of Solace for the 007 entries.