Teh best lvl place for 45 war.? :DFollow

I recently had a 60 shammy on Tanaris,but i went to go look back at my other servers,there was 40 war.i had completely forgot about him for like ever!
well,my lil bro help me lvl him,so hes 45 now,and i need to know the best place to lvl for a 45-50.i need to hit 50 before Feb. starts,so i can pvp up my sham.
Working on getting big bad pauldrons but i dont know where they drop.




<333