as for geo:it all plays together as a complete system,you cannot isolate a geo measurement really.
but in general:long reach,high bb:pogo, backwheel hopping to work and back
lower bb:stable,manual machine
the steeper the headangle,the more responsive(on 2 wheels,obviously)
chainstay length:short:bunnyhoppableish,long:stable
problem:all those depend heavily on each other and the setup,small tweak,big change in feeling