Yup I've never had a problem with square taper BBs.

I never tried a outboard bearing BB. I think the rationale is that they allow for a thinner and larger diameter spindle, with more distance between bearing, so it should be lighter and stiffer.

IMO all this talk about lightness and stiffness, for frames, BBs, etc., is repeated by mags and people ad nauseam but has little to do with facts!