I had a very good laugh today watching Channel 4 News who led with Dubya's final press conference before the handover. Jesus, this guy stays duff right to the end. He said there are "enemies who want to inflict damage on Americans" when his own administration has inflicted more damage on more Americans than any since the US Civil War. He wished Obama good luck - he would have been more honest saying "I got us into a right mess, kid - now let's see you get us out of it".
It was quite hard to disagree with anything George Galloway said (his basic line was that Bush had been a disaster for the developed world and the Middle East). They had a guy from the supposedly 'progressive' Brookings Institute on who wasn't really given a fair hearing but in any case, what he had to say was patent bollocks - saying that Bush will be looked on kindly by historians in the long run. Well, if Obama is actually Mussolini in disguise, that's probably right. But in the real world, the Brookings guy (can't remember his name, sorry) should be ashamed of himself for talking such absolute crap.
My final view on Bush is a bit more nuanced than some on the Left - I don't think he is a complete idiot. On the contrary he's an astute, if limited, politician, who made an agreement with Dick Cheney and with some of the major US corporations - particularly in oil and infrastructure - that he was going to run America in the interests of big business and a few super-wealthy people at the top of the pile. He then proceeded to implement that strategy to perfection over 8 years.
Huge cuts in taxes for the very rich, massive government deficits going towards pork-barrel spending to favour large corporations (particularly a massive increase in the defence and internal security budgets), and also, post 9/11, using the Patriot Acts to pave the way for the future abolition of the US electoral system and the final corporate takeover of America and the establishment of a corporate-fascist state. That's the long-run Republican agenda. It's anti-democratic, anti-liberal, anti-libertarian and anti-(traditional) conservative. Which explains why Dubya currently has an approval rating of 25%. That 25% is the proportion of the US population who are either benefiting directly from his legislation, or who are so dumb that even after the collapse of the US economy, they still can't see the agenda.
Actually, on the economy, Bush made things worse but the foundations for economic collapse were laid by Reagan and Clinton in the 1980s and 1990s respectively. It was Reagan who began financial liberalisation and Clinton who repealed the Glass-Steagal Act which separated commercial and investment banking. Clinton of course has the excuse that he was just following what had then become the conventional orthodoxy (not a perfect excuse, by any means) - whereas Reagan helped create that orthodoxy. Bush had little in the way of explicit ideological underpinning for any of what he did, which was his strength as a populist politician. But it's also wrecked the Republicans' electoral chances - probably for a long time to come, in the same way that the intellectual incoherence of the Carter presidency killed the Democrats off for a decade.
So I would advise that you ignore any sentimentality which emerges as Bush departs. The guy was not an idiot. But he was a dangerous populist asshole, possibly the worst US president of all time, and we are all much worse off because he was in power for 8 years, and much better off now that he is the hell out of there.