As far as Caleb's movement from Blood 1 , I honestly have to say that Blood 2 comes far closer to anything else I have seen in anything other than the Original Blood. Just think about it for a minute, Monolith did get most of Blood 2 right, they just never polished it off the way it should have been. Had they spent the right amount of time getting the small details right with Blood 2, it would have possibly rival-ed Blood IMO.
As far as world physics and such, Arjan's "Festival Of Blood" MOD is a great example of Blood 2's potential for coming close to Blood.
http://www.planetblood.com/fob/
Lithtech is really a very powerful and versitle engine(I know I probably spelled that wrong

) it's just "un-finished" in my opinion. (At least for B2, The engine was wayy more polished for NOLF)
BTW:You can thank World Of Warcraft for me not moving forward more on my Blood 2 project (gladly I am finished with that nasty habit finally)