Before I get to recommending one of the ally options you listed I have to point out that you should not be listing individual Points costs for items in your posts. So I suggest you edit your posts or a Dev will and will give you a warning most likely. Now with that out of the way.
My knee jerk reaction would be to go with the Black Templars as your allies because the crusader squad would boost your troop choices, which are relatively light for what is going to be a 2000 point list in total. However, if you think you'll be seeing lots of psykers the Rune Priest in the Space Wolf allies will provide excellent defense against them.
"We are the ever watchful guardians of mankind and all its knowledge. This is our bloodsworn oath. Only in the fury of battle do we honour it. We are the Blood Ravens and we fight in the name of the Emperor and the Imperium."
Captain-Librarian Manithus, Blood Ravens 2nd Company