So far it's been my experience (having owned both Internal and External) that it has been largely contingent on the various mag's people have been using and their keeping their gun clean. I know with the Kimber's the firing pin safety plunger was getting caught up and the issue being mistaken for the extractor. The S&W I've had for I think a little more than 3 years (about 5K rounds) and out of the 4 mag's I rotate through, only 1 ever caused any jamming.
So far, EVERY Springfield I've owned, from their mid to low-end 1911's and also their XD's has been shit. Is the OP looking for self defense, going to the range and unloading, or just trying to look tough?
Ultimately I don't really see why some brands dabbled in the external extractor anyway, as the internal originally seemed to work just fine.