Digital tends to be more similar to slide film than print film. You have he same tight tolerance for exposure. You always had a lot more "slop" factor with film than with slide, or now digital.
Since digital is a linear process you'll find that it is often wise to push the exposure so that the histogram goes as far right as you can get it without clipping. This usually means you need to know how the histogram in your camera compares to the one in Photoshop, since that is usually the ultimate target. Because of the linear nature of digital, half of all the info the camera can capture is in the first 1/5th of the histogram (on the right). Then half of what's left is in the next zone moving left, and so forth.
I don't think the sensor will make much difference, in this case. Also you have to deal with the very narrow window of time for a sunset.
Often times, you get the best control, by using enough strobe power to overpower the sun and then you essentially control the subject exposure with fstop and the sunset exposure with the shutterspeed. You'll want the WB set to produce warm tones.
Here are a couple of examples:
Re: Dynamic range film vs. digital