I don't know what year that card was designed but I suspect it's a fairly recent one. If so then likely DOS drivers don't exist.
In any case PCI and DOS, while they can function together, generally don't gel very well where sound cards are concerned. The general wisdom is try to get a motherboard with an ISA slot and get an ISA sound card.
As for the best, it depends what you want to do. If you're aiming for pre-3D games, SB16 should be fine. If you're looking for late-DOS ones (say 1994-7), SB AWE 32 or 64. The ISA models, specifically.
If you're looking to play games which are designed with Windows in mind first and foremost, you can probably get away with a PCI sound card.
Someone's likely going to correct me in some detail but that's broadly the rule - ISA rules for DOS.