He does seem to miss a lot against targets far away, same like me, but he has infinite ammo (I assume) so has no ammo concerns unlike me. I generally try not to shoot in VATS unless I have at least 40% accuracy. Maybe that's just a newbie thing though, and I'm supposed to shoot at 10% and up...
I don't know which ones are considered strong, but I moved on to Camp Searchlight and he took on all of the Ghoul Troopers and other zombie-like guys there on his own
I'm not running any mods, I even disabled some of the DLC that gives you crazy stuff like GRA. If he's gonna get even more powerful, I'm more inclined to just leave him somewhere, it's ruining the game for me, taking away any challenge whatsoever...
I'd like some more opinions of people...
In all my google and forum searches about my newly acquired companion ED-E, I have found out about many glitches and bugs, including him disappearing, randomly attacking you, or even massacring entire towns.
However, I have not found any information as to how ED-E found out about Star Trek...