I like crumble cakes, as well as plugs. I am not sure I like the hockey puck plugs like Salty Dog and Condor as much. But, I guess this is why they make a variety of products.
What I like about the crumble cakes is that I can just break them up with my fingers without having to get out a knife and deal with all of that wasted time slicing and prepping. I know some guys like to fiddle around like that, but smoking is what I do all day long, so I don't get into all of that ritual lighting of candles, incantations, and prepping the beast for sacrifice and such.