You really can't go wrong with either the Glock or the Springfield. Just make sure that the Glocks grip fits you right, if you chose that gun. It doesn't fit that many guys' hands I know, and they can't shoot them worth a crap.
I have an XD 40 Tactical and it shoots very well. I added a set of Trijicon sights, Dons Stainless guide rod and a #22spring. Disassembly of an XD takes all of 5 seconds to completely strip it down.
Here is a group I shot with mine about a week or so after I bought it, shot at 25 yards freehand.