Hey guys I'm resurrecting this thread for a few reasons:
1.) We have some new plugins: My Organ Adam Monroe's Rotary Organ and a pretty good free organ that was just released, Collab3.
2.) I've made a shootout video comparing 11 B3 organ plugins, including the ones previously mentioned in this thread: 8Dio Vintage Studio Organ Acousticsamples B5 v2
Adam Monroe's Rotary Organ Air Music Technology DB-33
GG Audio Blue3
Native Instruments Vintage Organs
IK Multimedia Hammond B3-X
Logic Pro Vintage B3
3)This thread ranks pretty high in search results.
I did my best to try and do a fair comparison - no added EQ, just presets, drawbar settings, and built-in effects. There is a solo section as well as a bunch of "in the mix" sections where I feel you can really hear how the different Leslie simulations fit into a mix.
Coincidentally, the shootout was done in Cakewalk, because I love me some Cakewalk.