None - I read a number of general ones where the 5900 was on top, so figured that was the card to go for. This was my first time [buying a decent card] so unlike the weeks since, I didn't really read sites like this. That said, I did see a benchmark on this site with it performing at the top....or at least I think I did. I certainly didn't do much research, but...
...my point is, the 5900 isn't 'a nightmare' or even slightly painful. If the benchmarks say it's slower than the 9800 pro and even any other card, then so be it. But at the end of the day I'm playing 3 or 4 hours of BF a day and think it's bloody amazing! (visually as well as the gameplay).
While anyone who spent that amount of money would like to know it is the best, it isn't the end of the world when it turns out not to be so.
I sometimes wonder by the amount of whingeing on the topic if people are actually playing these games or if their level of enjoyment from a game is simply the gratification of a benchmark.
EDIT: My FRAPS figures above are for 4xQ AA and 8xAnisotropic. And I recalled incorrectly the 9800XT scores - it gets 78fps at the full-on 1600x1200. So my 67 is reasonably close. I also took that on a busy online map, and went out of my way to make it tough, taking off in a flying a plane, swerving about, shooting and then piling into a tank.