I need a second camera and can rent either a PD 170 or VX 2100. I'm most concerned about low light performance. Is there a hands down winner? I'd like to rent a DVX, but can't find a reasonable price for a weekend. I've used an XL2 before, and the low light is awful.
Either way, you'll be stuck with 60i and 4:3... and chips that won't match in post. PD170 will give you more control, but I'd find a way to make the DVX happen if I were you.
Well you have more control on the DVX, but the low light is better on the PD-170 or VX2100. I would try the DVX for up close shots and then the PD-170 for wide shots.