Which Dhikr is more comprehensive: "Subhan Allah wa bihamdihi (Glory be to Allah and with His praise)," or "Subhan Allah (Glory be to Allah)," or "Subhanaka Allahumma wa bihamdika, ashhadu an la ilaha illa anta, astaghfiruka wa atubu ilayka (Glory be to You, O Allah, and with Your praise, I bear witness that there is no god but You, I seek Your forgiveness and repent to You)"?

Every good dhikr (remembrance of Allah) is rewarded, and both remembrances mentioned in the question are good, and virtues have been reported for each of them. The second dhikr is more comprehensive because it includes the first, in addition to the word of Tawhid (monotheism) and seeking forgiveness. The Prophet, peace and blessings be upon him, legislated that this dhikr be recited as a conclusion to every gathering, to expiate any idle talk therein, as narrated by Abu Barzah Al-Aslami: "At the end, when the Messenger of Allah, peace and blessings be upon him, would leave a long gathering, he would say: 'Subhanaka Allahumma wa bihamdika. Ashhadu an la ilaha illa anta. Astaghfiruka wa atubu ilayk.' (Glory be to You, O Allah, and with Your praise. I bear witness that there is no god but You. I seek Your forgiveness and repent to You)." It is also legislated to recite it after ablution, for whoever performs ablution and says this dhikr after finishing, it will be written in a parchment, then placed in a seal that will not be broken until the Day of Resurrection.