digital is nice but if you have a 35 mm and are comfortable using it stick with it cause you can always scan them into a computer. if its a sunny day then definetely use the 35 because you'll never get the saturation on digi like you would with film. Just don't slow down your shutter any lower than 1/500 of a second and use your polarizer if you have one and on sunny days always shoot with the slowest film possible and try to stick with fuji films they make the best blues and greens on the market.
Godd Luck