Do you like your organ to sound froogly-boogly, or do you prefer it to be phlanged and Leslied?

I love Leslie speakers! Richard Wright's (of Pink Floyd fame) famous "ping" sound at the beginning of the Floyd's "Echoes" tune is an amazing example.
Those speakers are completely outdated today, of course, because you can easily produce the typical Leslie sound by some digital audio processing.

I like it to make a sloshing sound when it interacts with somebody else's organ.

I don't have one.. i just whistle