Hi Tracy. I think the answer to the best option really lies within you. Both options sound perfectly fine -- you should choose the one that will make you the happier, and therefore better, Mom.
Personally, I am strong believer in the studies that show the stronger, aggressive "academic-based" preschools and kindergartens result in much higher stress levels in our children by the time they are all in fourth grade -- even though they end-up academically on par. Therefore, the "lesser" program may not be as detrimental as you might fear!
The option that makes you the happiest will allow you to be the more-relaxed, interactive Mom when the kids are around. So choose whichever will make your life the most fulfilled! Best wishes to you and your expanding family!