MSI and PNY have HORRIBLE support.
I havent dealt with XFX.
BFG has stellar service and support, and their cards come overclocked modestly out of the box.
MSI and Leadtek usually have the best cooling solutions and overclocking (historically, theres not enough data to check on 6800s specifically yet).
I agree with Leadtek usually having the best 2d for nvidia.
Asus and Abit are both decent, they seem to be very reliable, and they both have a decent RMA program. They are usually middle of the pack with all of their models, although asus is offering some off-spec models this time around that could be anywhere on the charts, i havent seen any numbers on the goofy cards they are pushing.
I have not dealt with Albatron.
Evga had some severe 2d IQ problems on VGA through the FX series that was attributed later to low quality components on the card, on top of that, evga only offers a 1 year warrenty.
as always these are my opinions if you had great luck with your evga FX5200 and when it burned out after 367 days they sent you a diamond studded FX5950, more power to you.