Applying Round 1 vs. Round 2

I know that this question has been discussed quite frequently on the forum, but I wanted to get everyone's opinion again on Round 1 vs. Round 2. I believe that some had found that Round 1 had a slightly better acceptance rate than Round 2, but the books I have been reading (Montauk) all suggest that the Rounds are equally weighted. I am only applying to one school, Kellogg, and I believe I have a fairly good shot at getting in (GMAT above the average, good work experience, extracurricular, recommendations from alumni, etc.) and I was on track to apply to Round 1, but due to some additional responsibilities at work, I have been working some long hours recently and the application process has been temporarily put on hold. Currently, I have all my essays outlined, but I have yet to write any in full. Additionally, I was hoping to get another professional certification and launch a website for one of my volunteer organizations before I submitted my application and it just seems that trying to do all this at once would make for a lesser quality application.

So what is everyone's thoughts? Go nuts trying to finish and get it done for Round 1 (and possibly have a better chance) or have a more relaxed pace and get everything in and submit a more polished application for Round 2? Ideally, I would like as many critiques on my application as possible and this would definitely allow it.

Also, can anyone recommend a resource for critiquing essays? I do not mind spending the money on good critiquing if it is worth it.

TIA!