Which of these performance best suits a beginner bowler?

I want to purchase my own bowling ball. I will have my own coach soon, and I am going to join my high school team. Tryouts are at the very beginning of school. I usually bowl for fun. I have now been bowling once a week for a few consecutive weeks. After doing extensive research, I have concluded with the following beginner's : Storm Tropical Storm, Power Groove, Roto Grip Sword Nomad, Roto Grip Mars and Pluto. My question is, which of these ball will be suitable for the best playability in competitions/tournaments for a beginner with a coach?