I have to go with Arcade Gannon. He's a pretty good shot and i like to talk with him, he's probably the most intelligent companion of them all.

It's tough for me to decide between Veronica and ED-E, but I'll give a slight edge to ED-E. It's just not New Vegas without my handy little floating metal backpack.

I like EDE's backstory and such (also his upgraded laser, which kicks ass) so I voted for him. A close second would have to be Veronica, as not only is she witty, (and has the best dialogue in the game IMO) but she's a great diversion when I need to hang back and use my scoped hunting rifle.

I never go anywhere without my buddy Raul backing me up. I always seem to end up with the Raul/ED-E combo.

I have to force myself to avoid the 188 and Old Mormon Fort, or else I'll get Veronica or Arcade and nobody else ever.