nothing like grabbing a fistful of drawbars. buttons just don't cut it. also, the percussion level on the electro is controlled via the presence knob on the EQ. doesn't sound very convincing.
all digital leslie simulations have their drawbacks. you just need to choose which one sounds better to your ears.
if you're not into drawbars and specific tone shaping, then go for the electro, since it also offers other keyboard sounds.