One Piece 745: for the first time, really, since the time skip, we get the sense that the opponents the Straw Hats now face are absurdly powerful. The arc has nicely condensed now - so the pace ought to pick up hugely. 

Naruto 674: Well, I'm glad that the bad guy is finally seeming formidable and actually able to exploit weak allies. The battles are still a bit flat in Naruto these days, but this was a decent combat chapter for the first time in a long while.