That little lip at the front of the keys does NOT change it's feel or the sound, so add the Roland VK7 to your list. The three sound very different in small ways. THe VK7 has the most authentic leslie (and very adjustable too) the Korg is very ballzy and thick sounding, and the Hammond has a great overall tone. For the moment - I think I lean toward the Korg. It has a solid feel and I prefer the low end. If I had to rate the three it'd be:
1)Korg
2)Hammond
3)Roland
2nd & 3rd are VERY close - on any given day, I can change my mind about teach of them. For right now - the new Korg is pretty cool.