To me Lindberg only sounded good on Terminal Spirit Disease and Slaughter of the Soul. Maybe even on With Fear if I'm being generous. On everything else, from their earliest stuff to their most recent, he's the weakest element by far and just sounds kind of weird. He's worse on the new album than he was on the last, but after a while I stopped noticing.
And yeah, Kakko was good until around Days of Grays (love that album, of course; I consider it their last good one), when he exponentially became more nasally. Hard to listen to them nowadays because of that. Not that I have, really, since Stones.