Oh, so this thread actually did post. It kept throwing up a bunch of errors.
I thought it was commonly understood faster, more colours, etc is better. I'm not a musician so don't care about cubase compatibility. My monitor can go up to 800x600, would be pleased with a 16 colour desktop. Mostly interested in using it for writing, bit of programming, some boring spreadsheet type stuff.
What I'm concerned about is if one card or the other is going to be too much for the Atari to drive. Mach32 has 2D acceleration, but I've no idea if the Atari drivers put that to use. I can imagine pushing some big 1024x768x 256 colour mode from CPU is going to slow it to a crawl.