Phaneuf is fine, it's Gunnarsson who should be relegated soon, but unfortunately we don't have a puck mover who is at least as good defensively as Gunnar is just yet, though Rielly is coming along quite nicely.
Phaneuf is one of the best 'puck rushers' in the league, not a straight PMD, but a puck rusher in the sense that he can use his strength and accelerate effectively in carrying the puck out, and sometimes it leads to beautiful plays (remember that Grabo OT goal against Pittsburgh a few years back? Phaneuf started all of that).
There was a stat called zone exits that a guy started tracking back in the 2011-2012 season. Phaneuf was one of the best defensemen in the league in this regard.
http://www.hockeyprospectus.com/article.php?articleid=1467
Interesting to note that Dan Girardi, a guy that everyone seems to want so badly, is horrible at this aspect.