Rax:
good if you dont care about accessing multiple inputs
Easy UI
Ploque Bidule:
multiple, flexible and assignable outputs
takes a lil more to understand to setup things, but is very very easy once you figure it out
Nick and homebilly, remember that the VI plugin is actually running in the background even if you open it inside your DAW, and will always access the VSL server app for memory access, no matter how many instances you open in various hosts/squencers. Only exception to my knowledge is the standalone VI workaround (renaming copied instances).
Btw Nick, do you say that if you open up multiple VIs inside KORE you will be able to route the outputs of them to multiple channels, ie. having them streamed into Logic from the background?