i don't have experiece with dan wes, but i know springs are reliable and affordable...plus you can add on as you go for little $ and minimal (if any) gunsmithing...
i own a spring mil-spec myself, bought it for $600 new, which came with a beveled out well, and polished feed ramp-good stuff to have with any 1911!
added a guild rod (in my opinion, a must) for @ $30 and a comp for @ $70, next thing you know, i have a hell of a machine for less then $750!..i'll be adding a 8rd mag next-not bad if i may say so myself
never had any problems with the springfield-no ejection problems, feeding related problems, accuarcy problems, disassembly/reassembly problems at all
-hope this helps some