DVD to AVI - what resolution?

[Bully9]

Say you're re-encoding a 16/9 DVD to Xvid at a typical ( 1000-1500 kbps) bitrate. What resolution do you use? 640x360? 720x404? Something else?

What criteria do you use to make your choice? Would you apply the same rationale to a 4/3 rip? Or other A/Rs?

I don't suppose there's a right or wrong answer, I was just interested in what experienced rippers thought.

[jagabo]

I leave the resolution the same as the DVD and set the Xvid PAR/DAR flags. You'll have to make sure your player supports this though.

[guns1inger]

I usually use 720 width, but resize for 1:1 PAR because there is no standard for support of the AR flags. I also usually don't restrict myself to arbitrary file sizes, as I am not part of "the scene"