The question is which OS you intend to use. Agreed with flupke11 that Matrox' image quality is hard to beat - the question is whether that is relevant. If you want to run Windows (3.x, 95) you'll probably have a relatively high-res desktop and then that is very important. Also, the Millennium Windows drivers are good.
But if you want to run DOS, VESA support is the most important, which means you can't really beat S3, particularly the Vision 8xx/9xx range and the Virge.
My main system from 1995-1999 was a P60 with an S3 Vision 868 1MB card. The only thing I'd do different if I could go back in time was spending extra for 2MB. Oh, and do my RAM upgrade from 8MB to 16MB in March 1996, not January 1996 (would have saved 3/4 of the January price 😮 )