still my nr.1 VSTI sampler by far. i like halion and use it here and there, but for the daily work, vsampler is muuch faster and more efficient. all the real-life oriented shortcuts, customizable defaults etc, you sure notice that vsampler is a 2.65 where halion is a 1.1 :-)
biggest plusses: -16 stereo outs baby :-) -awesome mapping features, hispeed prelistening of samples, automapping, tune detection, drag and drop all over the place, you name it -good interface -awesome performance -stability
minus: -filters -halions got better akai import
one thing about the features that dont seem as useful for VSTI use (integrated synth, step seq, stadalone and VSTI host capability) - think about the day you will use labtops on live gigs, this is where this will come in handy and vsampler will have no competition at all. add the bank manager to it and there, the perfect softsynth manager for live use. PERFECT.