Hi Abdullah. Glad to hear that more people are in interested in this subject!
Regarding your questions, as with everything, .LRN has both pros and cons when compared with Moodle. In the early days, the technologies that supported .LRN (AOLserver, PostgreSQL, Tcl) used to outperform their competitors; but I don't think this is necessarily true nowadays.
Another technical advantages from the analytics point of view is that every request to the platform is first handled by a global request processor, which eases the way to track the actions that learners perform in the system. This would probably be feasible in Moodle as well, but I think it would require much more work than in .LRN.
I hope this helps and I also hope to keep on discussing these interesting subjects around here!
Cheers,
Derick