which do you like to shoot better 9 or 45 ?
with that get the 226 if you like 9 or 220 if you like 45. both pretty much the same gun.. 220 grip is thinner, holds only 7 or 8 rounds , 226 you get 10rounds, honestly go try both, its the only way you will really know.
the 220 came out before the 226, the 226 is pretty much a 220 that holds a bigger mag. imho, i like the 220 in 45 over any 1911, but thats just me, im not saying i dont like them. im just saying for me, the feel and comfort level are better. check out sigforum.com if you want to get technical lots of good sig info on there.