the glock 19 to the 17 .. is all a personal preference. i like the 19, and would of had one if our stupid laws werent what they were. but im good with the 17.. i will pick up a 19 eventually,. but a few others are in front of it.
XD's are for people who are 1911 fans , i just cant stand that stupid button on the back of the grip. feels like im playing nintendo back in the 80s. imho
and also imho ,for 9mm .stick with european designs, i dont think the americans appreciate the 9mm round, and dont design pistols around this round. if i was going to get an STI., it would be a 45. and if i was getting an m&p is would be a 40,