I, too, have seen some AWFUL triggers on NEFs. I'd get the Encore barrel, personally, and I do like the .22-250 over any .223, much flatter shooting out at range.
ARs are for battle. The Encore has the accuracy. I don't own a single AR15 and never will. I'm not a mall ninja, just a hunter, and I ain't gonna spend that kind of money on a range toy. My SKS is adequate for range fun. ARs can be accurate, but I just don't like 'em at all. Ergos are all messed up and you don't need firepower in the field. I can't see hunting prairie dogs in full auto.... I guess you could use suppressive fire for fire and maneuver? Gotta keep their heads down, ya know.
Now, if I did a lot of varmint hunting, I'd buy me an accurate .22-250 bolt gun, probably a Remington. I own a Savage, my Remingtons are better, more accurate guns with better trigger adjustability. A Savage will work if you can't afford better. There are many better rifles, though, from America and Europe.