Drive by wire throttle vs GM electronic foot pedal

[scherp69]

Hopefully this is the right place to put this. I'm just filling in a few more holes in my firewall before I get ready to lay some primer on it. Once I get to the point of getting a motor, I will be getting the GM LSX376 if it's actually out and if not, the LS3. My question though is..which throttle option is better: drive by wire throttle or GM's electronic foot pedal? If I go with the GM one, can I fill in the accelerator pedal and drive by wire holes? Thanks in advance.