What are you talking about? Arena design? Locations of said arenas?
Both the Boston and Philadelphia NHL/NBA arenas were built with hockey in mind. The real issue comes from the smaller bowl of basketball specific arenas--the old Coyotes/Suns arena, Barclays in Brooklyn, the one in Salt Lake City, the Golden 1 in Sacramento. You can discern these basketball-optimized arenas apart from multipurpose hockey/basketball ones easily--Look at the seating charts.
The arenas in Utah and Sacramento don't even have the major issue that Barclays has, the off-center, asymmetrical seating configuration for hockey. Heck, the Salt Lake arena was even used for skating event at the 2002 Winter Olympics, though the ice surface does require a
lot of retracted seats. They may not have the best angles in their upper levels, being optimized for basketball, but they are still essentially symmetrical. (Honestly, I'm kinda surprised the new arena in Sacramento is not more asymmetrical, as there's little chance of a permanent hockey tenant unless the Sharks move their AHL team there, and even then a minor league team doesn't need the whole arena anyway.)
As is State Farm Arena; the new renovations do not appear to have altered the general seating bowl shape, and there is still movable seats around the entire floor, not just at one end. The renovations have not made the building unsuitable for hockey, just opened it up instead of the wall of glass that used to dominate one side.
The six NBA arenas with off-center ice are Barclays in Brooklyn, Charlotte, Indiana, Memphis, Phoenix, and San Antonio. Seattle, after the 1990s renovations, also was off-center, but the new rebuild for the NHL expansion team will reverse that as it's essentially an entire new arena under the old roof.