I want to ask, why such demand on B3D format
Because .b3d format has a FANTASTIC 3DSMax exporter supporting animation, bones, materials, collisions, helpers, shapes, lights, cameras - well everything really. PLEASE don't let this thing down by not including a great art path - soooo many engines do exactly this and end up being a waste of time.
However, a cutom exporter that supports all the new stuff BasicGL can do would be great too, but you'll have to write one for each 3D modeller (Milkshape, 3DSMax, Maya, Lightwave, Wings, Cinema4D, Gamespace, TrueSpace, etc. etc.) to keep everybody happy, whereas a .b3d exporter already exists for most of them.
Speed test :
BB - 79-85
BGL - *** 270-280 ***
3Ghz PC, Geforce Ti4200
Wow. Extremely wow.