The ice in the Chukchi south of Wrangel Island is likely to be the first area to go "poof". There both the ice surface and sea temperatures are very high, and there's a relatively thin strip of ice, so it's less protected from the high water temperatures. I think a lot of it could be gone within a week. Elsewhere, as other's have stated, it will mainly take a bit longer.
Compared with 2012, there is stronger melting in ESS, similar/a bit weaker in Laptev, a bit stronger in the Greenland Sea (but with more ice to melt), but much weaker in Beaufort and CAA (although it's picking up there now). I'd say that 2012 is still well ahead in terms of momentum, but the last few days and the forecast for the coming week are definitely giving 2019 a boost.
Relatively consistent Fram and Nares export, including some very thick ice, is another factor in 2019's "favour" in the race to the bottom.