I feel that a shooter needs to own a weapon that he feels comfortable with, can shoot well and that he has confidence in. For me that is my Glock 22 and my Springfield XD. The Glock is my duty weapon and the XD is my CCW. I can shoot both very well and have 100% faith in both and like the feel of both.

If you can, find a local range that rents differn't guns try them on for size. Granted don't look at reliabilty super hard, range guns get shot alot and cleaned very little. It will still give you the information that you need in regards to accuracy and feel.

The weapons you listed are all great guns and are all proven. A home defense gun just like a duty gun or a CCW gun should be reliable and you should have faith in it. If that means $200 extra for a Glock/Kimber/H&K then so be it, it's your life.