If the choice were mine, I'd choose the 36-485 because the motor and drive train are more simple and easier to work on. I looked at the parts illustrations on the various parts places on the internet.
As to a 'riving knife', maybe that's a good feature. I've been using a table saw in one form or another since 1974 and haven't missed one at all. Same with a guard. A good shop-made wood push stick and safety glasses is all I've ever needed. Actually instead of safety glasses, a full face shield is better because your face won't get pelted with dust and make you flinch.
As to a 'riving knife', maybe that's a good feature. I've been using a table saw in one form or another since 1974 and haven't missed one at all. Same with a guard. A good shop-made wood push stick and safety glasses is all I've ever needed. Actually instead of safety glasses, a full face shield is better because your face won't get pelted with dust and make you flinch.