I know I'm biased and all but...
They are all really heater core type radiators, all the B-Ice series, the big-momma, and mine. I am classifying them by design EG: they have many long thing runners going from one end to the other with fins soldered in between and each end has a tank.
The only things that are going to matter are the materials used(copper or aluminum) and the density of the fins and water passages.
The BI models are no different. They just had the capital to invest in getting their own particular design made. I'm not bashing on them at all it's a very good product, if I had the capital I would do the same thing, but it's still a heater core(albeit much prettier
