I lean toward Pacioretty and Ehrhoff. Even more if you are in a keeper league,
ehrhoff value is low due to last season difficulty in his case, but don't this happened to most of the bufallo Sabre's player? (Except maybe pominville) Things should get back to normal this year, well i hope.
Edler is the player with the most value in the other hand, but he ain't worthing pacioretty in my opinion.
So here is the question you need to ask yourself: would you trade ehrhoff for pavelski? I would had say yea, pavelski is a good 2-way player but...ain't a D who can make 45+ pts worthing a good 2-way player?
But Pavelski's versatility to play Rw and Centre is to be considerate depending of your needs.