ISO, aperture, shutter speed etc makes no difference, other than the usual exposure / effects (such as blurry water, etc).
The best tip I can give you, is not to go too mad with the spread of your exposures. +1 / -1 will still give you plenty more dynamic range and will be easier to tone map without it looking hideously un-natural. If your not 100% sure of the correct exposure, then shoot a spread of -3 to +3 stops either side of the metered exposure at 1/2 stop gaps, then once you've got home, pick the best exposure as your middle one and then +1 and -1 either side of it. That'll effectively give you + or - 2 stops of safety margin from metered. You can also slip the 1/2 stop images in there as well for good measure and merge the 5 images (-1, -1/2, 0 (0 being correctly metered /exposed) +1/2, +1).
Also set your camera onto motordrive (i.e. not one shot) and use the exposure bracketing function and the self timer. You should find that the camera will take the whole series of shots without the need to press the shutter release for each individual shot. Much better than taking each individual shot then adjusting the camera, potentially moving it slightly which will soften the final image.