Connect G-Tech Drive: FireWire 800 or USB 3.0?

Hi,

I am just setting up my new G-Tech 2 Tb external hard drive.

It is my third: the other two are connected through FireWire 800 in a daisy chain.

This new one has an USB 3.0 option.

USAGE:

1. extended hard drive space for my retina MBP 500 GB hard drive. Once section will contain RAW files (photos), another video shot with the 5D mark III.

2. one patition will be a bootable clone, made with Carbon Copy Cloner, with regular backups.

Question 1: Shall I connect it via USB 3.0 - or add it to the daisy chain to the older G-Techs via FW800?

Question 2: I already have a lot of device connected to my only 2 usb ports on my Retina MacBook Pro (I'm using those rather cheap, small Belkin docks). If I would connect the G-Tech hard drive via a Belkin USB dock to the USB 3.0 port on my MBP - would this work, or would the dock make trouble?

I have never used a USB 3.0 device, so this would be important information for me.

thanks!