When I stopped to pick through the great bargain bins at Acker Merrill the other afternoon, the two clerks at the register were deep in debate on the newest addition to the Upper West Side Dining Wasteland. Those lines you’ve been reading about on the blogs? Not so much, apparently. I jumped in to ask how the burger compared to Fairway’s, and the guy stopped cold. “Well, it’s fast food,” he countered. Okay. Say no more. BK with strollers for Baby Jesuses is a very particular level of hell.