Apply to all of them. If accepted into an Air National Guard unit, or any Guard unit for that matter, take it. You can't predict the future. I'm a 27 year Army Aviator. I've spent the last 13 years in fixed wing with three type ratings. I currently have an interview with with a legacy airline. You never know what is going to happen. Bottom line is, you will have a great time flying for whatever service accepts you.