I tend to prefer ATi. Its partly familiarity as most of the PCs I've had over the last few years (at work) have had some form of ATi chipset. Also, when looking for a new card for my new system I had a good read through the manuals for the ATi and NVidia cards in my price range and found the utilitites with the ATi cards far more user friendly. I therefore ended up with the GV-RV467D3-512I (the best I could afford at the time), an HD4670 based card with 512MB of GDDR3 memory that so far is doing all I want of it. I also have an old 'Time' P3 based laptop with a Rage P/M Mobility chipset and at work my HP laptop is also ATi powered using one of the Radeon chipsets, but I can't remember which. However, my favouite card, and one that I've been using for many years now, is a Matrox Millenium G200. It was extremely unusual as, at the time, it was one of only a tiny handful that came with drivers for some DOS programs and Windows 3.11, which allowed me to keep using older software whilst running the new 'cutting edge' Microsoft Windows 98. It also had one feature that I do miss with the new card. It enabled me to zoom in on part of the screen where the cursor was pointing at either 2x or 4x zoom using hot keys, which proved useful when looking at certain applications that didn't have inbuilt zooming . However, Matrox weren't on the list this time as they now only seem to supply top end cards at extreme prices that are outperformed by much cheaper offerings from ATi & NVidia.