Mahler set recommendations?

I recently bought Bernstein's set with NYP. Except for the brass being a bit tinny, I have no complaints. It's quite a good set. Despite this, I am looking for something a bit more modern to complement it. And as much as I like the Bernstein set, I would prefer one without an overly romantic interpretation I'm thinking the Chailly set with the Royal Concertgebouw. Any other recommendations? As always, your input is appreciated.