The size of the steering wheel and ratio of the steering gear is also a consideration. I found the Excal more difficult to 'turn in' (and more likely to bite you when it did) than my ERA.
But the point is not lost, consensus seems to support the concept that a SB is better on the track. Well, maybe, maybe not. For the AVERAGE replica getting the proper suspension setup is significantly more important than what kind of power plant you run.
If were talking a 'full race' setup (not typical for most of us), a BB on a weight reduction diet can come very close to the weight of a SB. Perhaps a SB is easier to 'dial in' the suspension. Perhaps it's more forgiving? So that kind of brings us full circle as to 'which is best'. Coming out of the 'hairpin' at the end of the straight the BB torque was VERY welcome, I can tell ya that for sure!