Board Thread:Lore Discussion/@comment-24098614-20150903093108/@comment-1738746-20160129065644

ut why do the Greybeards and the Blades get along so bad against each other. For the same reason most factions don't get along with the Blades- they're genocidal maniacs hell bent on wiping out an entire race :) They know they can't do it alone due to Dov immortality, so they're very keen on using propaganda to brainwash you to 'lead' them in this most noble pursuit (don't forget, you have the soul of a dragon- you're part Dov too). To put it bluntly, you're nothing short of a puppet to them just as past Emperors were.

Also, the comment someone else made above about the Greybeards "manipulating" you is very false- while they advise you about the Way of the Voice, they also state many times that the Dragonborn is exempt from this within their religion. Again though, that's just their religious beliefs- keep in mind the Thu'um was first passed down to mankind to be used in battle against the dragons.

All that aside, most people I know who have had to make the choice have preferred sticking with the Greybeards, for the shouts and also to have Paarthurnax as an ally- remember that with him gone, you lose the ability to meditate on words of power. The Blades faction doesn't give you much more than any other faction would, except hunting down your fellow Dov. In regards to College Mage: Farris' comment, this is an uncommon glitch that may or may not occur for you (I recommend not taking the risk as the returns just aren't worth it).