The XDs have a great record for reliability. Check out the torture test: http://springfield-armory.primediaou.../SPstory11.php
For the XD9SC, Pierce makes a little pinkie extension that can be used with the compact magazine. This will give you a slightly bigger grip so maybe you can get a full grip even on the smaller mag.
I can't comment on the others as I don't have prior experience with them.