Zimmer vs. Wieland
Compare these two: Carl Wieland of Answers in Genesis vs. Carl Zimmer. It's no contest. Zimmer refers to the scientific literature and accurately describes recent advances in AIDS research, while the creationist evades the key points, makes up false assertions about the data, references out-of-date creationist misinterpretations, and flings out non sequiturs wildly.
This is typical.
Funniest comment in Wieland's article: the suggestion that Zimmer should have "checked this website [AiG] first". Yeah, and maybe he should have also visited the circus and consulted a few dancing monkeys, too.