The middle one looks a lot like Pheedno's PCT, here it is have a look and I hope it will answer your questions http://forums.steroid.com/showthread.php?t=94626
As for my opinion, of the above options run the three compounds together(I never run clomid at all but that was not a listed choice), run the clomid low dose and high dose on the nolva and taper the nolva down, .5mg adex should be sufficient IMO, I know lots of guys say not to run nolva/ldex because of lowered blood serums, but if it only takes a couple mls a week of ldex to do its job then a slight loss in efficacy can be tolerated.