Hammond B3, C3, and A100 are good for me. When our C3 was being rebuilt, we were loaned an A100 and it sounds just like a B3/C3, just different construction and the internal speakers. I've never used a B3 but I'd imagine it's as good as a C3.
When I'm at home, I have a Roland VK-8M organ module connected to a Casio WK-3500. It works well. The organ sound is outstanding and that's including the leslie sim. I am planning sometime to get a 13-note foot pedal so I can play like I do at church. I use a Yamaha FC7 expression pedal as well. So basically I own a poor man's B3/C3. :lol: