The White Council is
consisting of the ringbearers of the three Elven rings and most of the Istari - the Wizards - that were sent to Middle Earth by the Valar. http://lotr.wikia.com/wiki/White_Council
That means: Gandalf, Saruman, Elrond, Galadriel and Radagast (and Glorfindel, but he was generally erased from the movie-verse) and they were all present in the scene and influenced it. The Council is secret, used by the forces of good to be up-to-date on what the forces of evil are doing, so the fewer people that know about them and what they are doing where, the better.
I agree that Glorfindel could have been there and Elrond would definitely take his sons Elladan and Elrohir, were they not completely erased from the movie-verse too. But otherwise it still applies that the council is secret. I am glad I finally saw Elrond wield a sword, but I would have really
liked to see Galadriel show us what she can do with a sword. Given events in Silmarillion, I find it entirely possible, though, that she renounced fighting, but that's just a speculation, but it would explain why she's not suited up in any kind of armor and barefoot (since she pretty much does walk around barefoot). Come to think of it, Saruman wasn't armed to the teeth either.
Galadriel doesn't wield magic. Her only "power" is telepathy (the best word I can come up with for her power) and mental resistance coming from having to live with it for thousands of years. Since Sauron at this point wasn't corporeal anymore and only his mind existed, she was probably the best person to choose in the battle of minds. I took the whole scene as more symbolic - to battle evil you need to descend into the deepest darkest corners of your soul and she did just that, used Ëarendil's light as a token to strengthen her and guide her, then threw it all at Sauron and hoped for the best.
Basically, the only thing she did was win a loud argument.
There are various breeds (and cross breeds) of Orcs - http://lotr.wikia.com/wiki/Orcs
- and generally they aren't particularly smart in any of their variation, their strength lies in their overwhelmingly larger numbers.
Personally, I liked the CGI on Azog and Bolg a lot more than I did the prosthetics on Lurtz and Uglúk in LotR. I feel like it impaired the actors way too much.