I take huge issue with the idea that the liberal base didn't hate Bush as a person, constantly making distasteful insinuations about his intelligence or morals, and I very much question how old that poster was during the Bush years.
As for the OP, however, I'll go with about equal. The difference is that the far right is more powerful and has a louder voice in today's GOP than the far left had during Bush's two terms, so the "hate" is more noticeable and seems more personal (having the legislative power to block a liberal agenda looks a lot more like being obstructionist/blocking whatever the President puts forth than simply b*tching about it).
The diffrence is that right-wing Republicans openly chastised "liberal" Republicans to a degree that hasn't been seen since the Gilded Age. There was no KILL THE BLUE DOGS mass movement in 06 or 08. If the hate was equal, there would've been way more examples of primaried democrats than just Joseph Lieberman. There were 5 Joe Miller-like candidates for every Ned Lamont type insurgency organized by Democrats.
