1) GURU is NOT God, He is servant of God and he teaches his disciples to serve God and get love of GOD. 2) If no.1 is True than Guru should be given respect as you give respect to a GOD. 3) In Kabir's doha "Guru , govind Dau khade .." You pay obeisances to guru first for What . That What is important. Because " ..Govind dio batie ", Guru tells you about Govind and tells you to serve and get love of govind. Govind does not mean durga, shiva kali or some GURU. Govind means Krishna. So one who does not tell you to get love of Krishna they are all bogus. Reject them as you Guru on this GURU poornima.
Now lets find out the so called spiritual organisation of these days. Are they teaching you to get the love of Krishna. 1) Ram krishna Math: - They do not know who is GOD and claim ramkrishna was god. God is always God from beginning. Our Krishna killed Putna when he was 6 days old. He lifted Govardhan. By worshipping kali one never becomes God. Krishna tells in Bhgawat Gita to surrender to Him, not any other Shiva , durga etc etc. . But Math people they just spread rubbish. Reject them.
2) Our HHH Ravi Shankar. His philosophy based of sankar philosophy. And Finally if you go in advance people will say HH ravishankar is GOD. That again rubbish. God has six opulent in complete. These Swamis can not control their nature's call how they can be GOD. Reject.
3) All other Dhongi's baba ( like Sai baba with long hairs ) reject them.