My dad says something similar - his favourite tour is the Warning one, but Nimrod is his favourite album
Also, unrelated thought; I remembered that I still had a copy of Tre in my room, and I'd forgotten one of the lines in DRB ("all fucked up beyond intervention", always slips my mind), so I looked at the lyrics and the last lines of 99 Revolutions caught my eye, and it gave me a massive nostalgia attack of standing outside the Emirates, and all the excited anticipation that came with it, and it reminded me that above all the debate and discussion here, they are and always will be the Green Day Band form California and I fucking love them.