I would much rather prefer playing White. especially if White still moves first. White is so much further ahead in development at this stage and both Rooks already sit on Half-open files and Black has to be very careful when trying to catch up in development with White's pawns already on the fourth rank.
As far as White's King being open, I would counter that Black currently is not threatening anything so it doesn't matter. Before Black even thinks about attacking the White King, Black needs to figure out how to get his pieces in play and White already has a big head start in that area. I consider lack of development to be a big weakness in Black's position.
Even being two pawns up, I would hate to play Black in this position.
As far as White's King being open, I would counter that Black currently is not threatening anything so it doesn't matter. Before Black even thinks about attacking the White King, Black needs to figure out how to get his pieces in play and White already has a big head start in that area. I consider lack of development to be a big weakness in Black's position.
Even being two pawns up, I would hate to play Black in this position.