I think GWB is more = LBJ. But I agree with your sentiment.
We will see what happens in 2006. Bush has a lot of negativity right now which will probably carry over and result in loss of the House. The party who has both a lame duck President and a house or more of Congress almost always loses several seats in Congress in the mid term election. It happened to LBJ, Reagan and will most assuredly happen to Bush.
Hopefully, after the losses the GOP will go back to its conservative base. We can only hope.
History will prove you both wrong. IMHO