Plotter or pantser, you're still going to need some intuition to guide you in the planning phase of writing. Once you've found that perfect idea, there are a million different paths that idea can take. How do you know which paths to choose? Yeah, you guessed it. Use your Writer's Intuition.
When I'm planning a story, or even when I get stuck in the middle of one, I like to sit down and do some brainstorming. It helps me to list out all the different possibilities, even those I know I won't use, even those that seem cliched or just plain dumb or totally silly. Then I decide what I feel will work best in the story. Sometimes I come up situations I never expected. You've probably had that happen too.
Don't be afraid to let your imagination run wild. Think up all the cliches, the nonsense, the dead-ends, and what-not. Somewhere in there, your Writer's Intuition is going to dish up the perfect direction for your story to take.