@Feba: True enough
@Aks: /blm was the first good sub for whm and still fairly common to see since the other listed subs are all advanced jobs. Sometime I guess about a year and a half ago the community caught on to the fact that Auto Refresh gives you more mp over time than Conserve MP will save you and /smn became the cool kids' sub for whm. Then /sch came out with its more powerful Conserve MP effect on Light Arts, which ostensibly saves you more mp than Auto Refresh gives, in addition to 10% faster casting and recasting. You get that at level 20, long before you could even get Conserve MP or Auto Refresh from other subs, plus the option of Drain and Aspir with a usable skill level and Sublimation for extra mp recovery at level 70.
/pup I had never heard about. I don't really know how pup works but having an extra little autonomous curebot around seems like it could be worthwhile.