Yes indeed, I will scoff at that claim.
A better ensemble of actors? Well, in the sense that Better Call Saul is more of an ensemble than a show with a true lead character (Odenkirk is a far better supporting actor than lead), it could be debatable, but pound for pound, BB wins easily, IMO. Not counting the characters who were on both shows (since that can be considered a wash), BB had Bryan Cranston, who gave what some, including both Anthony Hopkins and myself, would call the greatest acting performance ever. His performance alone elevates it. And then of course there is Aaron Paul, who was brilliant as well; I would say he was the 2nd best from either show, so already BB has, IMO, by far the top 2 performances from either show. Moving forward, I would say Anna Gunn and Rhea Seehorn were equally good, although I suspect many who disliked Skylar for some bizarre reason would not give Gunn props for her performance as a result. And let's not forget Dean Norris, who turned what could have been a stereotypical tough guy cop/DEA agent character into a complex one. Michael McKean was awesome as Chuck, and Michael Mando and Patrick Fabian are really good in their roles, but Breaking Bad just seemed filled with once in a lifetime performances in a once in a lifetime show.